http://bugs.winehq.org/show_bug.cgi?id=9898
--- Comment #1 from Roderick Colenbrander thunderbird2k@gmx.net 2007-10-05 15:05:15 --- Could you run using: WINEDEBUG=+wgl wine appname.exe &> log and attach the log file? Also what drivers are you using?
It could be related to the limited number of pixel formats we are offering. That will be addressed in the future.