http://bugs.winehq.org/show_bug.cgi?id=12062
--- Comment #3 from Roderick Colenbrander thunderbird2k@gmx.net 2008-03-16 17:44:02 --- As you showed on irc, the error is wglShareLists. The previous patch was correct. The thing is that now it just selects a different pixel format for the pbuffer and the main window. wglShareLists is buggy and needs to be rewritten but that is tricky..