http://bugs.winehq.org/show_bug.cgi?id=18074
--- Comment #9 from H. Verbeet hverbeet@gmail.com 2009-04-16 07:09:32 --- That's at least the correct driver, does it make any difference? Otherwise you could try compiling a newer version as described in http://intellinuxgraphics.org/install.html. I don't think this is a Wine bug though.