http://bugs.winehq.org/show_bug.cgi?id=24126
--- Comment #10 from Henri Verbeet hverbeet@gmail.com 2011-07-28 18:22:03 CDT --- Yeah, it's likely an issue with the driver, though you can't say for sure without debugging. It looks like you're using the classic Mesa driver for r300, you may want to give r300g a try.