http://bugs.winehq.org/show_bug.cgi?id=29397
--- Comment #6 from Henri Verbeet hverbeet@gmail.com 2013-02-16 13:30:23 CST --- Created attachment 43588 --> http://bugs.winehq.org/attachment.cgi?id=43588 random hack
This may be hardware / driver specific, actually. I've seen similar issues related to handling infinities and NaNs in other applications. You can't properly diagnose that from just a screenshot, but does the attached hack make any difference?