hhmm could it be overheating? or the lack of power?
i only have a 430 Watt power supply and the guy at the shop recommanded me get a 600 watt one..
my specs are a Alton 3700+ Nvidia 7900GT + Asus N4Force graphics card, 1 Gig Ram 2 DVD drives, 1 74 gb hdd and 1 250 gb hdd