http://bugs.winehq.org/show_bug.cgi?id=12353
--- Comment #8 from Dmitry Timoshkov dmitry@codeweavers.com 2008-04-05 09:52:55 --- Then this is clearly a duplicate of the bug 12264, and still your patch is just a workaround for the real problem (not mapping zero-sized windows due to WM bugs).