http://bugs.winehq.org/show_bug.cgi?id=12191
--- Comment #4 from Roderick Colenbrander thunderbird2k@gmx.net 2008-03-24 09:09:35 --- ChoosePixelFormat is basically a wgl call. Somehow it generates a null pointer dereference exception. I have no idea how this could be happening. The pfd we are sending to it from wined3d should be valid, so that would mean that something in the gdi32 <-> winex11.drv iterface isn't working well ..
If you can code try to figure out what's happening in winex11.drv/opengl.c