Quake 3 problems


I just d/led Quake 3 from Omnigroup and it refuses to run saying that there is no suitable display mode :(. I looked in the console and its stops after trying 640x480 fullscreen. My monitor control panel in system preferences only supports resolution from 800x600 to 1600x1200. Any ideas on how to get Quake 3 to run on my computer in X. I have an 17" Apple studio display which uses the ADC port. Any help will be appreciated.

Thanks in advance,