instead of just getting to the problem i think its best that i tell exactly what i was doing so it doesnt make me look like a total idiot. i was having trouble playing many performance demanding games like doom 3, half life, BF2, etc. i kept getting this Machine_Check_Exception error on the BSOD. i've had this problem before my new hard drive (last one mest up) so the first thing i new to check was my IDE cables and my master/slave jumpers. i was that i might have had my IDE cables intertwined with the wrong peripherals. anyway i was looking in my bios (AwardBios) and came upon some settings that were described to control things like plug and play. i figured it wouldnt hurt to tinker with it because nothing else worked. it was set to auto and when i changed it to manual a screen came up suggesting which peripherals to set. they were all set to selected PCI device or something like that. after taking a phonecall i forgot about it and exited while saving. now all my video is gone. nor does the system completely boot because i never hear that lovely windows jingle through my speakers. i hope anyone knows how to fix this. ANY help is appreciated.