http://bugs.winehq.org/show_bug.cgi?id=3319
--- Comment #12 from Jesse Allen the3dfxdude@gmail.com 2007-10-07 10:43:01 --- This issue is caused by reading "screen_depth". I can't test it though because I don't have a card capable of running it in the display depth. We probably should not return 15bpp directly, but 16. This can be fixed when you're fixing 24->32