I'm using a Hercules 3D Prophet (GeForce) 2 MX (32mb) and have had absolutely no problems. Prior to that I had a 3Dfx Voodoo3 3500 TV, which had loads of trouble (which is why I got the new card in the first place). I'm quite happy with the benchmarks on the new card. 2400 in 3DMark 2001; more than double the 3Dfx, even in 32-bit 1024x768 mode. Hell, even with FSAA turned on it at least matched the 3Dfx card. Very sweet.