http://bugs.winehq.org/show_bug.cgi?id=6716
--- Comment #19 from Kaluzman konf_kal@seznam.cz 2009-10-15 15:56:46 --- (From update of attachment 24151) After minimizing, draging window or scrolling. (Window background is like transparent.) Wine 1.1.31 on Debian Lenny.