Sure...
I think that the bundeled VoodooControl Applet needs to be uninstalled separately, just check the Software Panel, and after uninstalling the Registry as well (search for "Voodoo" should do it)
To get rid of the Driver 100% :
- Uninstall via Software Panel
- Restart and Boot into safe Mode
--> Delete Video Card from Device Manager
--> Open Regedit, search for "3dfx" and delete entries
--> In Windows' System Dir, delete 3dfx* Driver Files
--> In Windows' Inf Dir, delete 3dfx* .INF Files
After the next Restart, Windows shouldn't even know what type of Card a Voodoo is, and will ask for a Driver
Initially install "Standard VGA", and from there on, install any Driver you like...