I have no use for one.
But I guess it depends on what feature you are looking for.
A google hit gives me,
http://www.opensourcehunter.com/2010/03/12/9-free-open-source-ticket-sytems/

In fact I think there is a plugin for wordpress for support tickets.

Last edited by Ruben; 08/30/2013 5:25 PM.

Blue Man Group
There is no such thing as stupid questions. Just stupid answers