For a while, I had a problem where my comp would just shutdown, and I mean go powerless, for what seemed like no reason. This either happened before windows ever got open, or right after I would try playing a game on CD (Civilization III). Could a screwed up video card be the problem?? I thought it might be a lack in the power supply, so I took out my CD burner and the problem was solved for a little bit, but then it came back again. Everything seems to be working fine on the computer except it just sometimes go powerless. What hardware device could cause this?? I also switched out the IDE cable, and it still happened.

Thanks,
Chris