jit.desktop bug?

I'm trying to test out an idea that would require jit.desktop, but have never used it before. when I try to use it, it seems to output nothing no matter what I do, and when I check the help file I get nothing either... it doesn't seem like a very complex object to use, pretty straightforward from reading the reference file, but maybe there is something I don't know? or might there be a bug with the external under OSX 10.7, I think quite a few things changed under the hood with 10.7, seeing as a lot of my display related applescript stopped working when I updated, perhaps this is related? anyone else had a similar issue?

I'm on a Macbook pro mid-2009, OSX 10.7.4 running Max 5.1.4