http://bugs.winehq.org/show_bug.cgi?id=13101
--- Comment #32 from Roderick Colenbrander thunderbird2k@gmx.net 2008-06-03 05:23:18 --- I have submitted a workaround which has been added to git to disable multisampling for now. If you want you can enable it using by setting the registry Direct3D\AllowMultisampling to enabled.