http://bugs.winehq.org/show_bug.cgi?id=18258
--- Comment #5 from Gaspa gaspa85@gmail.com 2009-04-29 02:47:11 --- Created an attachment (id=20807) --> (http://bugs.winehq.org/attachment.cgi?id=20807) in this case i use compiz fusion 0.7.4. The "black window" is transparent