http://bugs.winehq.org/show_bug.cgi?id=11581
--- Comment #8 from Julian Rüger jr98@gmx.net 2008-04-19 01:18:50 --- I just tested with selfcompiled 0.9.60 and San Andreas works almost perfectly. The performance is worse than windoze, I still see Bug 8642 and antialiasing is not supported, but no wrong textures, no model issues the engine works as it's supposed to. The cutscenes look like in windows, except in the part where the cop-car stops at the railway crossing, the train moves too slow, so the car drives through it ;)
I have a geforce 7900gtx, use glsl and have both shaders enabled. The game is smoothly playable at 1024x768x32, when started with WINEDEBUG=-all; otherwise mouse (camera movement) lags like hell.
I still tend to believe its because you have an ati card... Please check your config, drivers, etc. Do other games work correctly for you?