for me there are a couple of problems since 12.4...trackir wouldnt work anymore for example, so i went back to 12.3 which is fine for me...btw, i never noticed any performance differences with the different drivers, so for me it doesnt matter anyway.
You have to dissable triplebuffering on OpenGL settings! Then TrackIR should be run again! I had the same problem and have reset my hole computer!!! After hours of trying things i found this solution! :evil::confused::mad::-P
