I downloaded the latest detonatorXP drivers (28.32) and it immediately started causing problems for me. It came up with a rundll32 error at startup, telling me that there was an invalid call in nvqtwk. however it didn't affect the way the machine operated, but the fact that there was an error bugged the hell out of me. I was also running riva tuner. To solve this whole mess, I had to uninstall the drivers, the video card and riva tuner and then reinstall the card and drivers. But if riva tuner was reinstalled it came up with the same error. Has anyone else had this or other problems?