http://bugs.winehq.org/show_bug.cgi?id=12535
--- Comment #6 from Reece Dunn msclrhd@gmail.com 2008-04-14 03:20:52 --- The DefaultDepth value in my /etc/X11/xorg.conf file is 24. I haven't overridden this, so I'm assuming that the depth of my X11 session is 24.