I just came to ask what I did to my bios, my 8800ultra is giving me 4500 in 3dmark6 instead of 13,500 as before, found pcie is at 1x instead of 16x, looks like i am not the only one. I guess its when I updated my bios from F4. Geesh, took me forever to figure out why my game was running so choppy. I will send tech support an email as well.