http://bugs.winehq.org/show_bug.cgi?id=7131
--- Comment #25 from Adrian Bunk bunk@stusta.de 2009-11-03 20:14:47 --- (In reply to comment #23)
Actually, have you tested windows to see what happens there if you run a non 16-bit depth?
I haven't used Windows for ~ 10 years.
As far as I remember, it gives the same message.