Please check that you are using latest drivers (driver kit 1.07.00 or newer). You can download them from 3dfx.
Q: Why can't I run the default benchmark?
A: 3DMark2001 is set to 32bit color as default and Voodoo3 supports only 16bit color modes.
Q: The demo sure looks weird on my V3. What's the problem?
A: Some parts have problems with rendering to textures - it is a driver issue. You can try to use the x3dfx BETA drivers for V3, but we don't encourage you to use BETA drivers.
Q: Some textures in GS1 look odd on my Voodoo3 (in the buildings in the end). Why?
A: This is probably a driver issue, and it occurs both on x3dfx and official 3dfx drivers.