http://bugs.winehq.org/show_bug.cgi?id=20761
--- Comment #7 from Roderick Colenbrander thunderbird2k@gmail.com 2010-02-16 15:06:06 --- Then this is a different error. From a quick glance in your case the colors look more or less 'okay'. I guess the data is 16-bit and it is interpreted as 15-bit or the way around causing some color corruption.