For a little while, I was periodically getting the blue screen of death... more frequently lately. When I checked the Event viewer in Vista it had an error each time it happened that said something about Power Management kernel error and Processor 0. Also I sometimes heard beeps before the blue screens would happen that sounded like it could be coming from the power supply, but it was hard to tell. Now the computer just freezes at the motherboard splash screen and will not boot (can't even get into BIOS). Could this be caused by a bad power supply?