http://bugs.winehq.org/show_bug.cgi?id=29596
--- Comment #7 from Henri Verbeet hverbeet@gmail.com 2012-09-05 08:27:10 CDT --- (In reply to comment #6)
In my case, output from running BGMain.exe is:
radeon: The kernel rejected CS, see dmesg for more information.
That's typically a bug in the userspace GL driver. You should report that at the freedesktop.org bug tracker, if there isn't a bug for that already.