I was having the exact same problem. I am using an Abit BP6 motherboard, two 366 celerons, ata66 controlled hard drive, and Viper 770 Ultra video. No matter what drivers I used I got an opengl error when loading Quake 3 or a white screen that I had to crtl alt delete. I checked the microsoft newsgroup and got a link to http://www.mswin2k.net/noflash.shtml where I got a driver that worked. It appends the register, but there appears to be no side effects and Quake 3 works great. Played it half the night. Thanks(This is my first post) hope it works.
