I am trying to figure out why my computer keeps rebooting during rendering. I can play Half Life 2 w/ graphics all the way up and have no issues. When I try to copy a movie over from my minidv xp reboots. It does the same thing If I turn up the graphics higher then medium in Battle for middle earth. My old computer would do the same thing while rendering a video. The only common factor between the 2 machines is the video card. It is a 256mb BFG tech Nvidia Gforce 6200 OC (PCI) Do you think this is the problem? Or is it a software issue?