I wouldn't be supprised if it was a virus too. I have seen a few do that. Boot into safemode if the cooling suggestions do not work and run a virus scan.
Also, get a copy of Memtest, and boot into it and let it run for about an hour, see what that comes up with.
"as a fanboy i refuse to admit it and will pull countless things out of my butt to disprove it"
Team Thelegorm! Total Kills: 21 (i iz in uor profile, editsing your sigz)