To be quite honest, I bought my BFG 6800 GT OC over a month ago and have never have been able to get it running right since then. I have been rebuilding my PC weekly to try and resolve this. I have tried just about every driver available to no avail. Thank god building servers isn't this painfull or I would have jumped out of a window at work long ago! I have been using Joint Operations to test with, specifically the Aircraft Training mission. I have never gotten through the whole mission without some sort of hang or BSOD. So yesterday I check the boards and see the new NForce drivers and install them as my driver update "du jour". After installing, the Joint Ops aircraft mission ran smoothly. I am currently using 66.81 WHQL drivers as well. Finally, some light at the end of the tunnel! Although I do have to thank Nvidia for enhancing my WinXP install skills.