http://bugs.winehq.org/show_bug.cgi?id=22114
--- Comment #9 from Stefan Dösinger stefandoesinger@gmx.at 2010-03-29 10:46:36 --- I can reproduce this bug on my shiny new ATI card. However, the game is horribly slow, around 1 fps in the main menu. The X server is eating all CPU time it can get on one core, while the game itself seems to be mostly waiting for X11. Do you get the same performance behavior?
I'm not sure if those issues are related - we might be hitting a fallback path in fglrx that doesn't like the new buffer extension, but that is just a wild guess.