http://bugs.winehq.org/show_bug.cgi?id=18908
--- Comment #1 from Jan Hoogenraad jan-winehq@hoogenraad.net 2009-06-12 09:12:00 --- Sometimes the message appears: Powerpoint found an error that it can't correct. You should save presentations, quit, and then restart Powerpoint. You can hit OK at a that moment, quitting is impossible. Hitting the cancel button on the file open dialog, just shows the message again.