3Dfx wasn't much better. Even before they went under, clicking on a driver link brought you to a completely different site. I knew 3Dfx was in trouble back when the Voodoo 3 came out... and it didn't support all the features it's competitors did (32-bit color, full AGP texturing, etc...). By the time Voodoo 4/5 was finally released, they were already too far behind the curve to keep up. The cards were woefully expensive, and they didn't even use DDR memory!
I didn't like seeing 3Dfx go under; they were once kings in the 3D arena. When nVidia purchased the company, I knew it would be the end of support for the cards; despite nVidia's claims to the opposite. They're too busy working out bugs in their hardware/drivers to support 3Dfx products. The only new drivers you'll find are ones that other people have taken time out to write themselves.
My best advice is to ditch that 3Dfx card. I know it hurts, but you might as well buy yourself a card you know is going to be supported; rather than one from a failed company.
<font color=red> If you design software that is fool-proof, only a fool will want to use it. </font color=red>