I once had a computer that did exactely this. And it was the CPU fan that had stopped working. Once it was replaced, everything worked again.

But yeah, it could be a virus as well. I wouldn't reinstall the OS though. An antivisus program should be able to fix it. Reinstalling the OS is a last resort IMO. (too effin bothersome to reinstall all your programs if it's not REALLY needed)

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
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