Q&A: MacFixIt Answers

MacFixIt Answers is a feature in which I answer
Mac-related questions e-mailed in by our readers.

This week, readers wrote in with questions about managing custom services in OS X, RAM prices for MacBook systems falling dramatically over the past year, and resetting a forgotten administrator password without admin access and without an OS X installer or recovery disc. I welcome views from readers, so if you have any suggestions or alternative approaches to these problems, please post them in the comments!

Question: Managing custom services in OS X
MacFixIt reader Francis asks:

I have followed the guidance in this [article on making an OS X service for sending documents], and it works as described, however it is not quite what I am trying to achieve.

Is there a way to undo an Automator service that I have created?

Answer:
To remove any unwanted services that you have created, in the Finder hold the Option key and choose "Library" from the Go menu. Then go to the Services folder in here and locate and remove the custom service you created, which should appear as an Automator workflow if created in this program.

Question: RAM prices for MacBook systems falling
MacFixIt reader calebj22 asks:

I read your article from Oct 2011 about upgrading RAM in a Macbook Pro to 16 gigs. I have a 2.2 Ghz Intel Cor i7 that I bought in early 2012. My question is this. In your article you suggested the price would be $600 ish. On cricial and on Other World, the price in now under $100. Does this seem right? Have prices come down this much?

Answer:
The price of RAM is always fluctuating and generally falling. When I wrote that article, the RAM prices were quite high, but since then prices have significantly fallen. Now you can purchase a 16GB RAM upgrade for around $80 on average.

Question: resetting an administrator password with limited resources
MacFixIt reader Dean asks:

I am new to Macs. I just purchased a 2nd hand
Macbook pro with 10.8.1 running. The previous owner reset the user name and password but has forgotten them. I am locked out of some functions. I tried the Command-R and also option but see that it has no Recovery Partition. I am on dial-up but have a USB flash drive with 10.8.2 complete with installation files. How do I install this onto the HD without using internet or another Mac computer.

Answer:
First be sure you have a backup of your system.

Hopefully all the previous owner did was forget her password, but you can log in and force her password to be reset. To do this, reboot the system into Single User mode by holding Command-S at startup. You will be dropped to a text-based command line interface, where you should perform the following steps:

1. Run the following command to make the hard drive writable for editing:

   mount -uw /



2. Get a list of the current "short" usernames for accounts on the system:

   ls /Users



3. Identify the account in the list that is the previous "admin" account.


4. With the admin account short name identified, reset its password with the following command:

   passwd SHORTNAME

Enter the new password to use when prompted, and you should be good to go. Now type "reboot" and then supply the same short username and new password you just configured, and you should be able to log in to the admin account. At this point, go to the System Preferences and at least promote your user account to have administrative privileges, but also consider out of a courtesy to remove her old account (after you have admin privileges and have logged back in to your account).

A final word of advice is to avoid using an OS installation from a previous owner, and instead use a freshly formatted one for yourself. Granted in your situation you do not have the resources to do this effectively, but I recommend it ASAP when you do get the chance.

---

Questions? Comments? Have a fix? Post them below or !
Be sure to check us out on Twitter and the CNET Mac forums.

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Body Under British Parking Lot May Be King Richard III

For centuries, William Shakespeare seemed to have the last word. His Richard III glowered and leered from the stage, a monster in human form and a character so repugnant "that dogs bark at me as I halt by them." In Shakespeare's famous play, the hunchbacked king claws his way to the throne and methodically murders most of his immediate family—his wife, older brother, and two young nephews—until he suffers defeat and death on the battlefield at the hands of a young Tudor hero, Henry VII.

(Related: "Shakespeare's Coined Words Now Common Currency.")

To shed new light on the long vilified king, a British scientific team has tracked down and excavated his reputed burial spot and exhumed skeletal remains that may well belong to the long-lost monarch. The team is conducting a CSI-style investigation of the body in hopes of conclusively identifying Richard III, a medieval king who ruled England for two brief years before perishing at the Battle of Bosworth in 1485. Results on the investigation are expected in January.

But the much maligned monarch is not the only historical heavyweight to be exhumed.  Since the 1980s, forensic experts have dug up the remains of many famous people—from Christopher Columbus (video) and Simón Bolívar to Jesse James, Marie Curie, Lee Harvey Oswald, Nicolae Ceausescu, and Bobby Fischer. Just last month, researchers in Ramallah (map) disinterred the body of Yasser Arafat, hoping to new glean clues to his death in 2004. Rumors long suggested that Israeli agents poisoned the Palestinian leader with a fatal dose of radioactive polonium-210.

(Read more about poisoning from National Geographic magazine's "Pick Your Poison—12 Toxic Tales.")

Indeed, forensic experts have disinterred the legendary dead for a wide range of reasons—including to move their remains to grander tombs befitting their growing fame, collect DNA samples for legal cases, and obtain data on the medical conditions that afflicted them. Such exhumations, says anatomist Frank Rühli at the Centre for Evolutionary Medicine, University of Zurich, always raise delicate ethical issues. But in the case of early historical figures, scientists can learn much that is of value to society. "Research on ancient samples provides enormous potential for understanding [questions concerning our] cultural heritage and the evolution of disease," Rühli notes in an emailed response.

Franciscan Resting Place?

Archaeologists from the University of Leicester began actively searching for the burial place of Richard III this past August. According to historical accounts, Tudor troops carried Richard's battered corpse from the Bosworth battlefield and displayed it in the nearby town of Leicester before local Franciscan fathers buried the body in their friary choir. With clues from historic maps, the archaeological team located foundations of the now vanished friary beneath a modern parking lot, and during excavation, the team discovered the skeleton of an adult male interred under the choir floor—exactly where Richard III was reportedly buried.

The newly discovered skeleton has scoliosis, a curvature of the spine that may have resulted in a slightly lopsided appearance, and this may have inspired Shakespeare's exaggerated depiction of Richard as a Quasimodo-like figure. Moreover, the body bears clear signs of battle trauma, including a fractured skull and a barbed metal arrowhead embedded in the vertebrae. And even the burial place points strongly to Richard. English armies at the time simply left their dead on the field of battle, but someone carted this body off and interred it in a place of honor.

Taken together, these early clues, says Jo Appleby, the University of Leicester bioarchaeologist studying the remains, strongly suggest that the team has found the legendary king. Otherwise, she observes, "I think we'd have a hard time explaining how a skeleton with those characteristics got buried there."

But much work remains to clinch the case. Geneticists are now comparing DNA sequences from the skeleton to those obtained from a modern-day Londoner, Michael Ibsen, who is believed to be a descendant of Richard III's sister. In addition, forensic pathologists and medieval-weapons scholars are poring over signs of trauma on the skeleton to determine cause of death, while a radiocarbon-dating lab is helping to pin down the date. And at the University of Dundee in Scotland, craniofacial identification expert Caroline Wilkinson is now working on a reconstruction of the dead man's face for a possible match with historic portraits of Richard III.  All this, says Richard Buckley, the lead archaeologist on the project, "will help us put flesh on the bones, so to speak."

Digging Up History

Elsewhere, teams digging up the historic dead have contented themselves with more modest goals. In Texas, for example, forensic experts opened the grave of Lee Harvey Oswald in October 1981 to identify beyond doubt the man who shot President John F. Kennedy. A British lawyer and author had claimed that a Soviet agent impersonated Oswald and assassinated the American president. To clarify the situation, the forensic experts compared dental x-rays taken during Oswald's stint in the United States Marine Corps to a record they made of the body's teeth. The two matched well, prompting the team to announce publicly that "the remains in the grave marked as Lee Harvey Oswald are indeed Lee Harvey Oswald."

More recently, in 2010, Iceland's supreme court ordered forensic experts to exhume the body of the late world chess champion Bobby Fischer from his grave in Iceland in order to obtain DNA samples to determine whether Fischer was the father of one of the claimants to his estate. (The tests ruled this out.) And that same year, Venezuelan president Hugo Chavez ordered forensic experts to open the casket of Simón Bolívar, the renowned 19th century Venezuelan military leader who fought for the independence of Spanish America from colonial rule. Chavez believes that Bolívar died not from tuberculosis, as historians have long maintained, but of arsenic poisoning, and has launched an investigation into the cause of his death.

For some researchers, this recent spate of exhumations has raised a key question: Who should have a say in the decision to disinter or not? In the view of Guido Lombardi, a paleopathologist at Cayetano Heredia University in Lima, investigators should make every effort to consult descendants or family members before proceeding. "Although each case should be addressed individually," notes Lombardi by email. "I think the surviving relatives of a historical figure should approve any studies first."

But tracking down the descendants of someone who died many centuries ago is no easy matter. Back in Leicester, research on the remains found beneath the friary floor is proceeding. If all goes according to plan, the team hopes to announce the results sometime in January. And if the ancient remains prove to be those of Richard III, the city of Leicester could be in for a major royal event in 2013: The British government has signalled its intention to inter the long-maligned king in Leicester Cathedral.

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Woman Tied to Gun in NY Firefighter Ambush

Authorities have charged a woman for allegedly providing a convicted killer with the Bushmaster AR-15 assault rifle he used when he ambushed four volunteer firefighters and an off-duty cop at a fire scene in upstate New York on Christmas Eve, federal prosecutors said.

Dawn Nguyen, 24, was arrested today after allegedly making an illegal purchase of the weapon used by William Spengler, 62, who set a house and car on fire in Webster, N.Y., the morning of Dec. 24, then shot dead two firemen and himself.

Nguyen is facing federal and state charges for acting as a "straw purchaser," buying the Bushmaster assault weapon as well as a shotgun with the intention of giving it to someone who cannot legally purchase it himself, said U.S. Attorney William J. Hochul.

Authorities accuse Nguyen of lying about being the sole owner of the weapons when making the purchase, a violation of federal law.

As an ex-convict, Spengler could not have legally owned or purchased the weapons himself.

NY Firemen's Killer Left Chilling Note Behind Watch Video

Rochester Fire, Shooting: Death Toll Rises to 3 Watch Video

"Dawn Nguyen told the seller of these weapons that she was to be true owner and buyer of these guns," said Hochul. "It is absolutely against federal law to provide any materially false information" on a firearms application.

As Hochul announced the charges, Nguyen was in a nearby court. It was unknown whether she entered a plea, and her lawyer could not be immediately contacted.

In addition to the rifle and shotgun, Spengler was found with a pistol, which authorities believe he used to kill himself by shooting himself in the head.

After apparently setting the fires, Spengler began shooting at emergency responders, officials have said. The attack left two firefighters and the gunman dead, and two other firefighters hospitalized.

Police officer John Ritter recieved shrapnel injuries at the scene but was discharged quickly from the hospital.

In a typewritten note found at the scene, Spengler revealed that he obtained the weapons from Nguyen, who for a time lived next door to him in Webster, Hochul said.

In that same note, Spengler pledged to see "how much of the neighborhood I can burn down." He said he wanted to "do what I like doing best, killing people."

Police said Spengler set a "trap" in order to ambush the first responders.

Firefighters Michael Chiapperini and Tomasz Kaczowka were gunned down. Two other firefighters, Joseph Hofsetter and Theodore Scardino, remained in guarded condition at a Rochester, N.Y. hospital.

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Today on New Scientist: 27 December 2012

Best videos of 2012: Spiderman skin stops a bullet

Watch reinforced skin stop a speeding bullet, at number 4 in our countdown of the top videos of the year

Gastrophysics: Some said 'more', others said 'meh'

Network theorists model everything from internet traffic to disease spread. But can they tease out titillating new taste combos? New Scientist gets cooking

Best videos of 2012: Sea lice reduce pig to bones

Watch a microscopic mob devour a pig carcass underwater, as we reach number 5 in our best videos of the year.

2012 review: The year in space

A Mars rover's daredevil landing, a private space-flight boom, and a man leaping from the stratosphere were among the top space news events this year

Photo puzzle: Can you make the connection?

Correctly match up 16 pairs of science-inspired images and enter a draw to win a state-of-the-art Olympus E-PL5 digital camera

Shiver me timbers: The coolest warship ever made

Unsinkable and bulletproof, battleships made from icebergs were the great hope of the second world war, says Stephen Battersby

2013 Smart Guide: Next-generation video games

The upcoming round of consoles promises to deliver a far more immersive video-gaming experience, with super-high-definition and multi-screen action

Dangerous liaisons: Animals' tangled love lives

The surprising mate choices of certain animals are forcing us to reconsider our views of evolutionary theory

Three gods: The hardest logic puzzle ever

Tackle this logisticians' parlour game and you may be a bit closer to understanding the nature of truth itself, says Richard Webb

2012 review: The year in environment

From the devastation wrought by superstorm Sandy to vanishing Arctic sea ice, we round up the biggest environment stories of the year

Feast for the senses: Cook up a master dish

Trick your dinner guests into thinking you're a master chef by manipulating all their senses

2013 Smart Guide: Hot computing for a cool billion

Six mega-projects, from a supercomputer brain simulation to a real-life SimCity on a global scale, are vying for two prizes, each worth $1 billion

New Scientist 2012 holiday quiz

Anatomical incongruities, why men are like fruit flies, a boson by any other name, and much more in our end-of-year quiz

2013 Smart Guide: Supercomet to outshine the moon

A gas cloud crashing into the black hole at the centre of the galaxy and a naked-eye comet promise celestial fireworks in 2013

Dangerous liaisons: Fatal animal attractions

Humans aren't the only animals that can run into trouble when choosing a mate, discovers David Robson

2012 review: Zoologger's 12 beasts of Christmas

Zoologger is our weekly column highlighting extraordinary animals - and occasionally other organisms - from around the world. Here are this year's 12 best

Prehistoric cinema: A silver screen on the cave wall

With cartoon frescoes, shadow theatre and a rudimentary form of animation, our ancestors knew how to bring their stories to life, says Catherine Brahic

Review of 2012: The year's biggest news at a glance

Halt to bird flu experiments, Greece's economic crisis, the Stuxnet computer worm, Curiosity arrives on Mars, and more

How does a traffic cop ticket a driverless car?

Rapid progress means self-driving cars are in the fast lane to consumer reality. Is the law up to speed too, asks legal expert Bryant Walker Smith

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US stocks down as "fiscal cliff" deadline nears

NEW YORK: US stocks dipped Thursday in the absence of a deal to avert a "fiscal cliff" crisis as an end-of-year deadline crept closer.

The Dow Jones Industrial Average finished the session down 18.28 points (0.14 percent) at 13,096.31.

The broad-market S&P 500 slipped 1.73 points (0.12 percent) at 1,418.10 while the tech-rich Nasdaq Composite shed 4.25 points (0.14 percent) at 2,985.91.

Washington has until the end of the month to reach a compromise on how to avert a crisis that could lead to steep tax hikes and stringent budget cuts. But with the clock ticking, a deal has yet to take shape.

Experts say a fall over the so-called "fiscal cliff" could take the world's biggest economy back into recession.

Still, markets appeared to be bolstered by word that the House of Representatives would reconvene on Sunday, raising hopes of an 11th-hour compromise.

President Barack Obama cut short his family Christmas break in Hawaii and returned to the capital, and the Senate was also in session Thursday.

"News that the House will reconvene for a session Sunday night propelled stocks to end well off the lows of the day, erasing an earlier double-digit loss on the Dow that came courtesy of discouraging remarks from Senator Harry Reid and a fall in Consumer Confidence," said analysts with Charles Schwab & Co.

Traders were also digesting a sharp drop in consumer confidence in December, traditionally a key driver of the US economy.

In its monthly survey, the Conference Board said the index now stands at 65.1, compared to the downwardly revised 71.5 in November.

Stocks in focus included US auto giant Ford, which said Thursday it would invest $773 million to expand factories across its home state of Michigan, generating 2,350 new jobs, part of a plan to add 12,000 jobs by 2015. It fell 0.23 percent.

Microsoft edged 0.4 percent higher after announcing it would open six new stores in the United States in 2013.

US-listed shares of Toyota Motor Corporation climbed 2.4 percent. The Japanese automaker said Wednesday that it had agreed to pay about $1.1 billion to settle a class action lawsuit launched by US vehicle owners affected by a series of mass recalls.

Marvell Technology Group dropped 3.5 percent after a jury on Wednesday hit it with a billion-dollar verdict, ruling that the US chip maker "willfully" infringed on patents held by Carnegie Mellon University.

Bond prices rose. The 10-year US Treasury yield fell to 1.72 percent from 1.76 percent late Wednesday, while the 30-year slipped to 2.9 percent from 2.93 percent. Bond prices and yields move inversely.

-AFP/ac

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BlueStacks for Mac quietly moves to beta

(Credit:
BlueStacks)

Related stories

• BlueStacks ports Android apps to Mac


• BlueStacks goes Metro with Windows 8


• Latest BlueStacks ARMs your PC

After launching to public alpha back in June of this year, BlueStacks for Mac today advances to beta. This means that
Mac users are one step closer to accessing a chunk of Google Play's
Android-apps catalog on their Apple-made desktops and laptops.

Earlier this year, BlueStacks made headlines when it won the Best of CES software award for bringing its powers to
Windows 8. The program successfully showcased a swathe of Android apps on Microsoft's newest OS and was even announced to come preinstalled on select Windows 8 machines.

BlueStacks Beta for Mac is available now for free download.

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How to Live to a Ripe Old Age

Cento di questi giorni. May you have a hundred birthdays, the Italians say, and some of them do.

So do other people in various spots around the world—in Blue Zones, so named by National Geographic Fellow Dan Buettner for the blue ink that outlines these special areas on maps developed over more than a decade. (National Geographic News is part of the National Geographic Society.)

In his second edition of his book The Blue Zones, Buettner writes about a newly identified Blue Zone: the Greek island of Ikaria (map). National Geographic magazine Editor at Large Cathy Newman interviewed him about the art of living long and well. (Watch Buettner talk about how to live to a hundred.)

Q. You've written about Blue Zones in Sardinia, Italy; Loma Linda, California; Nicoa, Costa Rica and Okinawa, Japan. How did you find your way to Ikaria?

A. Michel Poulain, a demographer on the project, and I are always on the lookout for new Blue Zones. This one popped up in 2008. We got a lead from a Greek foundation looking for biological markers in aging people. The census data showed clusters of villages there with a striking proportion of people 85 or older. (Also see blog: "Secrets of the Happiest Places on Earth.")

In the course of your quest you've been introduced to remarkable individuals like 100-year-old Marge Jetton of Loma Linda, California, who starts the day with a mile-long [0.6-kilometer] walk, 6 to 8 miles [10 to 13 kilometers] on a stationary bike, and weight lifting. Who is the most memorable Blue Zoner you've met?

Without question it's Stamatis Moraitis, who lives in Ikaria. I believe he's 102. He's famous for partying. He makes 400 liters [100 gallons] of wine from his vineyards each year, which he drinks with his friends. His house is the social hot spot of the island. (See "Longevity Genes Found; Predict Chances of Reaching 100.")

He's also the Ikarian who emigrated to the United States, was diagnosed with lung cancer in his 60s, given less then a year to live, and who returned to Ikaria to die. Instead, he recovered.

Yes, he never went through chemotherapy or treatment. He just moved back to Ikaria.

Did anyone figure out how he survived?

Nope. He told me he returned to the U.S. ten years after he left to see if the American doctors could explain it. I asked him what happened. "My doctors were all dead," he said.

One of the common factors that seem to link all Blue Zone people you've spoken with is a life of hard work—and sometimes hardship. Your thoughts?

I think we live in a culture that relentlessly pursues comfort. Ease is related to disease. We shouldn't always be fleeing hardship. Hardship also brings people together. We should welcome it.

Sounds like another version of the fable of the grasshopper and the ant?

You rarely get satisfaction sitting in an easy chair. If you work in a garden on the other hand, and it yields beautiful tomatoes, that's a good feeling.

Can you talk about diet? Not all of us have access to goat milk, for example, which you say is typically part of an Ikarian breakfast.

There is nothing exotic about their diet, which is a version of a Mediterranean diet, which emphasizes vegetables, beans, fruit, olive oil, and moderate amounts of alcohol. (Read more about Buettner's work in Ikaria in National Geographic Adventure.)

All things in moderation?

Not all things. Socializing is something we should not do in moderation. The happiest Americans socialize six hours a day.

The people you hang out with help you hang on to life?

Yes, you have to pay attention to your friends. Health habits are contagious. Hanging out with unhappy people who drink and smoke is hazardous to your health.

So how has what you've learned influenced your own lifestyle?

One of the big things I've learned is that there's an advantage to regular low-intensity activity. My previous life was setting records on my bike. [Buettner holds three world records in distance cycling.] Now I use my bike to commute. I only eat meat once a week, and I always keep nuts in my office: Those who eat nuts live two to three more years than those who don't.

You also write about having a purpose in life.

Purpose is huge. I know exactly what my values are and what I love to do. That's worth additional years right there. I say no to a lot of stuff that would be easy money but deviates from my meaning of life.

The Japanese you met in Okinawa have a word for that?

Yes. Ikigai: "The reason for which I wake in the morning."

Do you have a non-longevity-enhancing guilty pleasure?

Tequila is my weakness.

And how long would you like to live?

I'd like to live to be 200.

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Utah Teachers Flock to Gun Training

The perception of schools as sanctuaries from violence has been "blown up" by recent events and some believe it's time for educators to literally take the situation into their own hands and carry guns.

"We've had this unwritten code, even among criminals, that schools are off limits. Those are our kids. You don't mess with that," Utah Shooting Sports Council (USSC) Chairman Clark Aposhian told ABCNews.com today.

"That perception has been blown away now," he said. "It's been shattered and if there's one thing that parents across the country are united on, it's that they are committed to and serious about protecting their kids."

Aposhian spoke shortly before opening a weapons training class for teachers and school employees that drew more than 200 Utah educators organized by the USSC, a leading gun lobby group that believes that teachers should be able to fight back when faced with an armed intruder.

"One firearm in the hands of one teacher could have made the difference at Sandy Hook or Columbine, but they weren't allowed to carry in those schools," Aposhian said.

The USSC is waiving its normal $50 training fee today for teachers who wish to attend. Aposhian said the 200 person course was filled to capacity and said he plans on holding another session for people he may have to turn away today.

INFOGRAPHIC: Gun in America: By The Numbers

"We trust these teachers to be with our kids for 8 to 10 hours a day every day," Aposhian said. "I don't think it's a far reach to think that we could think that they would act responsibly and with decorum in protecting their own lives and the lives of the kids under their care."

Gun Owners Give Back: LA Residents Return Guns After Newtown Tragedy Watch Video

The idea of armed teachers has been part of a fiery debate on gun control following the rampage at Connecticut's Sandy Hook Elementary School that left 20 children and six adults dead on Dec. 14.

Utah is one of only a handful of states, including Oregon, Hawaii and New Hampshire, that allow people to carry licensed concealed weapons into public schools. It is not known how many Utah teachers carry guns in public schools because the records are not public.

But Aposhian said that he tells detractors that Utah has not had any school shootings or accidental shootings in the approximately 12 years the law has been in effect.

In Ohio, the Buckeye Firearms Association is launching a pilot armed teacher training program in which 24 teachers will be selected to attend a three-day training class.

Arizona's Attorney General Tom Horne has proposed a state law amendment that would allow one educator in each school to carry a gun.

During today's six-hour training session, the educators will be taught about gun safety, loading and unloading, manipulating the firearm, how to clear malfunctions, use of force laws and state and federal firearm laws.

The training sessions normally draw about 15 to 20 people, Aposhian said, but many of the teachers who have signed up for today have expressed strong feelings about attending the class.

"I think it runs the gamut from passive desire to get a permit because they thought about it here and there to a fervor given the recent events," Aposhian said. "Perhaps they've had an epiphany of sorts and realized that that sanctuary they work in, or at least the perceived sanctuary, isn't all that safe."

The Utah State Board of Education Chair Debra Roberts released the following statement today on the matter:

"The Utah State Board of Education expresses sympathy to all involved in the recent school shooting in Connecticut. In the face of this terrible tragedy, as schools move forward in taking measures to ensure the safety of students and school personnel, we urge caution and thoughtful consideration."

The statement noted that its schools have emergency plans to handle such situations.

Carol Lear, the board's director of school law and legislation, was more blunt about Aposhian's gun training, telling the Associated Press, "It's a terrible idea...It's a horrible, no-good, rotten idea."

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Three gods: The hardest logic puzzle ever

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US stocks dip in absence of 'fiscal cliff' deal

NEW YORK: US stocks fell Wednesday amid uncertainty about whether a deal to avert the "fiscal cliff" could be reached by an end-of-year deadline.

The Dow Jones Industrial Average was down 24.49 points (0.19 percent) to finish the session at 13,114.59.

The broad-market S&P 500 lost 6.83 points (0.48 percent) at 1,419.83, while the tech-rich Nasdaq Composite shed 22.44 points (0.74 percent) at 2,990.16.

"Investors in the US returned to business in the midst of the omnipresent tick-tick-ticking of the fiscal cliff clock," said analysts with Charles Schwab & Co.

The White House and Congress have until the end of the month to reach a compromise on how to avert a year-end crisis that could lead to stiff tax hikes and drastic budget cuts.

Experts say a dive over the so-called "fiscal cliff" could drive the world's biggest economy back into recession.

Obama was to head back to the capital late Wednesday from a shortened family Christmas break in Hawaii, and lawmakers are also expected back in Washington on Thursday.

Stocks in focus during the midweek session included those of online video giant Netflix, which gained 0.47 percent in the wake of an outage of its online film streaming service on Christmas Eve. On Wednesday, Netflix blamed Amazon for the incident, which rents out computing power in datacenters in the Internet "cloud." Amazon dropped 3.86 percent.

US commodities and derivatives market InterContinentalExchange (ICE) and its transatlantic peer NYSE Euronext were down 0.03 percent and up 0.09 percent respectively, after at least one shareholder complaint was filed to contest their planned fusion, announced last week.

Shares of BlackBerry maker Research In Motion meanwhile soared 11.5 percent, recovering after a plunge on Friday on investor fears that its new smartphone platform will thin the ranks paying for its service.

Tech heavyweight Apple meanwhile lost 1.4 percent.

Bond prices rose. The 10-year US Treasury yield fell to 1.76 percent from 1.77 percent late Monday, while the 30-year dipped to 2.93 percent from 2.94 percent. Bond prices and yields move inversely. Markets were closed Tuesday in observance of Christmas Day.

-AFP/ac

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