http://bugs.winehq.org/show_bug.cgi?id=17564
--- Comment #13 from Austin English austinenglish@gmail.com 2009-03-09 12:48:31 --- (In reply to comment #12)
'Display' doesn't run the script, only displays it.
ehm... 'run'
I don't ever use that feature, but perhaps you need to mark it as executable first?
Regardless, that's something you should ask on the Ubuntu forums, it's not related to this bug.