I have been running the 21.81 drivers and all was well. Swapped to the beta 22.80s and noticed big gain in 3Dmark2001(4150 to 4450) but found problems in some of my games. Mostly Direct3D issues. So went back to the 21.81s. Now I see that Nvidia has some new official Dets (23.11) and I am experiencing the same problems. UT runs great in OpenGL but lowsey in D3D. Motocross Madness 2 dropped in fps as well. Went back to the 21.81 and all is well again. Is there a setting that the new drivers are enabling that I should know about? All other official drivers have worked flawlessly. I am running ME and installed the ME drivers. Also, I am removing the old drivers just like I always have.