http://bugs.winehq.org/show_bug.cgi?id=29459
--- Comment #1 from Henri Verbeet hverbeet@gmail.com 2012-01-06 11:41:04 CST --- Created attachment 38283 --> http://bugs.winehq.org/attachment.cgi?id=38283 patch
This patch should help. The application seems to have a couple of other issues, but I guess those might be preexisting bugs.