http://bugs.winehq.org/show_bug.cgi?id=28691
--- Comment #19 from Tony Austin gigaday@googlemail.com 2011-11-03 18:48:49 CDT --- Vincent, your patch seems to fix the problem.
I downloaded wine-1.3.31.tar.bz2 and ran the patch against that, compiled and tested. I think I did it right and the display corruption is fixed.