I have recently updated my PC. Pentium D Dual Core 3.4Gig 2 Gig DDRII 533 775 Dual-VSTA motherboard Omni 500 Watt power supply AGP 128 nVidia Geforce 6800 2 x IDE hardDrive (80 GIG, 200 GIG) 3 x system fans I used my AGP nVidia 128 mb GeForce 6800 from my old system hence the need for the motherboard which supports DDRII, dual core and AGP. Every time a play a game (Dark Messiah of M&M),(Dawn of War, Dark Reign 40000K),and (Neverwinter Nights 2) my pc freezes. It can happen 30 minutes in or 3 mins in. I cannot get out of it except to restart PC. This is sending me crazy. The pc runs fine in windows, it only happens with games. I have tested my memory with Microscope and found no problem. I have been looking at threads about this and it talks about over heating of the graphics card. I check the temp of card while playing and it seems fine (60). The default clock speeds concern me though 450MHz/2.4GHz. I read somewhere it should be alot lower than this. Could it be power supply problems. Should I flash the bios of the card. Are there any bios setting to be aware of. Could it be my cheaper motherboard. I have benchmarked using 3Dmark03 and It handles well (1100- 1300). I have run twice in quick succession and it handled fine. Please HELP ME.