I read your test on headlight cleaners in the March 2012 issue. I used to shine my motorcycle headlights with toothpaste, a mild abrasive that's inexpensive and worked just fine.
Michael Kaloyanides
Bethany, CT
In "No, Your Computer Isn't Infected" (Up Front, February 2012), you reported on free virus-scan software, AVG Anti-Virus 2012. I did the recommended scan. But to delete errors it found, it required me to buy the software. Is this another scam?
Leonard Chabot
Myrtle Beach, SC
Editor's note: Make sure you click the link that says "Download Now," not "Start Download" and not an ad or a "sponsored" link.
"Dental Do's and Don'ts" (February 2012) was interesting, but you didn't discuss how often to get full-mouth X-rays. My new dentist insisted I get them, even though I'd had them a couple of years ago.
Sharon Alwart
Brighton, IL
Editor's note: Adults shouldn't get full-mouth X-rays more than once every five years, and then only if there's a reason. Many adults need only bitewing X-rays taken every 18 months or so to screen for cavities. If you're told to have X-rays more often, ask why.
To correct a printing error in a valid U.S. passport, Form DS-5504 is all you need. We said another form might be required, too, in an Ask Our Experts answer in January 2012.
In a February 2012 report on chocolate, we said Leonidas has one physical store. It has 15 stores in seven states and the District of Columbia.
A March 2012 article on America's top stores stated that Sam's Club offers express shipping to Plus Membership holders. Express shipping is offered for some online items, but it isn't a perk at any membership level.
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