Hey, the Voodoo2 is not crappy I have a GeForce3 and a Voodoo2, some older games are just better in Glide !
If you want to select a 3dfx card instead of a default OpenGL card, then you''ll have to load the 3dfxvgl.dll manually and modify the OpenGL function pointers. Alternative: just rename 3dfxvgl.dll to opengl32.dll, start your game, and rename them back on completion. Works well on Win98, but not on 2k.
Get a copy of the GLSetup source files. It dynamically links with ANY OpenGL driver on your system. Since it links dynamically, you will no longer need to put up with the 3dfx splash screen at the start either!