Power SUpply I think I've narrowed it down to the power supply, hard drive, or sound card (or maybe the memory). I am going to try the soundcard first though, since I have an old SB I can use. I've already done a complete reformat. Tried it with all unneccesary services disabled, etc, and I am still having the same problem that spudderman is having. So I would not recomend him not reformatting unless he really wants to. I've also tried running the games directly from the hard drive as opposed to the CDs and that does not help.