http://bugs.winehq.org/show_bug.cgi?id=12557
--- Comment #28 from Roderick Colenbrander thunderbird2k@gmx.net 2008-05-02 08:49:26 --- I haven't checked the log but in general when no 16-bit depth format is around we accept 24-bit (IsPixelFormatCompatibleWithDepthStencilFmt or whatever the function is called does that).