nVIDIA Detonator Drivers v40.52 MyDrivers got their hands on some new Detonator drivers, this time version 40.52, and are for both Windows 9x and 2000/XP. Download: 2k/XP Download: Win9x Source: Warp2Search
I haven't tried them since i prefer to stick with official drivers unless there are reports of a decent speed increase. I've heard a few problems about some of the properties in advanced features although I can't verify them. Given the increase in speed between the det 30's and 40's I'd doubt there is a noticable difference increase in speed if any.