I can't find any relation to the occurences, it shuts down when its working hard or not at all, 4 hours after start to 2 minutes, though it usually shuts down 1/2 hour afterwards, I play World of Warcraft a lot and it shuts down then mostly, but that may be because I play it 80% of the time on my computer, I've been on my computer now for and hour and a half, and it still hasn't shut down, please help is you can, I cant afford another computer or a repair. My computer is just over a year old, so I wouldn't think it would have any problems besides viruses.
Thank You