Hi. My brother's G5 tower has an ATI 9800 Pro, and on Tiger (either 10.4.9 or 10.4.10), it would be fine on boot, but as soon as it started being used graphically it would start glitching with yellow and orangey-red weirdness and eventually build up to an unusable point. It's under warranty, but the company it was bought from weren't able to reproduce it. Before I insist on sending it back again, is there any possibility that it's software related? The machine's also on 10.5 now, and it's still happening 
. Are there any proper drivers available for it, unofficially even? Thanks!
. Are there any proper drivers available for it, unofficially even? Thanks!