maybe 1/10 or so times playing doom3 i'll randomly bluescreen and quickly reboot. i don't know how to change my settings to set it NOT to reboot on bluescreen (i know there are some), but i can catch it saying memory or ram dump or something. i've searched and saw other ppl having same probs but never read any solutions. specs: A64 3500+ geforce 6800ultra 1gig twinx xms corsair ram 10,000 raptor (brand new) 7200 storage drive (it did it on this drive too before i got the raptor) audigy2 antec 550true ps win xp pro i know it's not the drivers because i literally JUST put in that hd and installed xp pro and installed all the latest drivers. i have 4 fans running and never see any extreme raise in cpu/gpu temps (this MIGHT be because sometimes i can't check because it reboots).. ALSO: i can get a bluescreen after 10min of playing doom3 sometimes. HOWEVER, i could also play 3+hrs w/out any probs. Half-life2 has not had any problems or the sort, yet. Pain Killer demo did the bluescreen/reboot combo very consistently after a short time of playing (i installed it one time to check out the graphics). thanks!