ViaHardware has posted results of the Viper II in Windows 2000 compared to Windows 98 SE. Here is a snip:
Since I was using the Tekram S3-Pro Au, which is a VIA Apollo Pro A motherboard, I installed the latest VIA AGP GART v4.03. I then loaded Q3 and went into setup and tried the "fastest" setting. Quake 3 blinked a few times then booted me out saying "could now load OpenGL subsystem." I loaded Q3 back up again and tested the "normal" and "high quality" settings. Both of those worked just fine. I reinstalled Quake 3 and even reinstalled Windows 2000, but the same problem occurred.Read more