http://bugs.winehq.org/show_bug.cgi?id=15340
--- Comment #1 from Roderick Colenbrander thunderbird2k@gmx.net 2008-09-20 08:30:39 --- Fixmes are in general not bugs. The black is caused by the lack of s3tc support (similar to bug 14939). If that is the case it is a duplicate of that bug. For s3tc support you need to add a plugin for mesa if you are using opensource display drivers as those by default don't bundle s3tc as it is patented.