http://bugs.winehq.org/show_bug.cgi?id=7695
--- Comment #5 from unggnu unggnu@googlemail.com 2008-04-11 19:09:10 --- If it gets stuck have you tried to minimize and maximize the viewer afterwards with the black full screen bar? It doesn't crash anymore for me there are only problems with minimizing but that could be fixed through the procedure mentioned above.