Working on someones computer... it was randomly freezing when it was left idle for 10 minutes or so and the last time it froze it wont boot back into windows. Sometimes gets to the windows XP logo and other times not. Just restarts and does it over again. I'm testing RAM now... seems to be OK so far (memtest) Im thinking power supply is shitting the bed? any way to confirm this or any other ideas? thanks in advance!