I had the same problem with the psychodelic glitchy graphics and Combat Mission, and also the CMBB demo with my custom G4 dual 1.25 gig/Radeon 9000 Mac that I bought in November 2003. (I bought it before I really "needed" a new computer because I use many non-OS X programs and after January any new professional-level Mac wouldn't boot into OS 9.x).
I was also experiencing other problems with the ATI Radeon 9000 graphics card, the main one being that it didn't offer the refresh rates (although my monitor could handle them, and I tested it on other monitors) that ATI and Apple claimed. After I finally got Apple tech support to admit that, no, it didn't produce decent refresh rates (I get migraines from the flickering at under 80 Hz) at higher resolutions, no matter what the specs were, I still couldn't get them to allow me to return it for credit towards the NVidia Geforce 4 Ti (which I could have ordered when I got the computer). Different drivers made no difference for any of the problems.
So I ended up spending a small fortune on the NVidia card, installed it, and everything seems to work fine now (knock, knock). Combat Mission is playing fine and so is the CMBB demo (haven't yet gotten the full game, but I suspect it will work, too). Also, COmbat Mission worked fine on my old computer, a G4 500 with a ATI Radeon Mac edition 32 MB graphics card, so it seems the problem is the Mac Radeon 9000.
My advice is to install a different graphics card if you can afford to. Like I said, the NVidia GeForce 4 Ti seems to work fine, although I seem to recall seeing posts here saying the Geforce MX might have some other problems.
Jude
[ March 21, 2003, 03:23 PM: Message edited by: Jude ]
