The good news is that I more than doubled my framerate according to Ctrl-I despite going from 1024x768 to 1600x1200. How come? I swapped my V5 5500 for a G4 4200. This is on a dual P3-1000.
The bad news #1 is that I don't know whether to believe the figures: AH thinks I have 256 MB of video memory; I actually have 128 MB.
The bad news #2 is that I'm off the flight deck until I have broadband connected, which should be next week. I've not been flying online for over a week. Sob, sniff.