http://bugs.winehq.org/show_bug.cgi?id=19555
--- Comment #1 from Dan Kegel dank@kegel.com 2009-08-03 00:48:17 --- Created an attachment (id=22789) --> (http://bugs.winehq.org/attachment.cgi?id=22789) patch to print error message when we're about to crash because of this bug
The code's complicated, so all I can do tonight is show where the problem is, hopefully the author can fix.