http://bugs.winehq.org/show_bug.cgi?id=21962
--- Comment #66 from Wylda wylda@volny.cz 2010-04-15 15:40:35 --- (In reply to comment #64)
Created an attachment (id=27372)
--> (http://bugs.winehq.org/attachment.cgi?id=27372) [details]
workaround, which disables the usage of GL_MAP_INVALIDATE_BUFFER_BIT
This is probably a better workaround.
Yes, this fixes the graphical issue for me.