By the way I have seen this problem on Win2k and XP boxes. I also tried uninstalling all of the NVIDIA drivers and rebooting into VGA mode and then install the 40.72 driver and seem to have some success. Again I think this is an NVIDIA problem and I have seen it on software packages new and old. Anything that gets graphic intensive or uses 3d graphics and problems arise. Also tested it on Windows98...everything works fine here but I'm not willing to go back to that.