Hey guys,
I'm having this problem on the Voodoo3 3000 PCI.
Installed it last night with the latest AmigaSport 3.0 drivers for WinXP.
Ran the 3dfx donut demo to see if the card was running fine, and the refresh rate is either so high or so low, that it scrambles on the screen!
I still have DirectX 8.1 installed (default from the WinXP installation, don't know if that affects it or not).
I tried running the Windows 3D Text screensaver, as that is only the OpenGL based piece of software I have on the machine right now as I've just done a fresh install. Tried that and it seemed to struggle a bit but worked successfully in the end, but the screensaver preview would not work, in the little monitor illustration in the Display Properties settings. Weird.
So I ran DxDiag and ran the Direct3D tests, and they ran absolutely fine. Sounds like Micha is right, and the fact is, is that it is only a problem with Glide or OpenGL based stuff.
Anyone have any further advice which may help, or shall I try out the tools above?