I have a geforce FX 5500 AGP X8 & AMD 64 x2 4200 just put it together. For some reason I cannot run a few of my games Call Of Duty 2, Pain Killer, Half Life 2, H/L Episode 1, F.E.A.R. and Quake 4. I can run Doom 3 with no peoblems (ultra setting) When I run these games I get a "blank" screen, however all sounds are fine. I used this video card on my Intel 2.4 gig Chip with 1024 meg ddr 333 ram.
The Mother board on the intel supported only AGP x4 but again I had no problem with these games.
I have updated all the drivers including the bios (mother board ASRock 939Dual-VSTA) I have matched all the setting on the bios as per manufacture requirement
To sume up I have tried everything. I love my new AMD (first time amd user) but going with out my favorite games is a major drag!!