How to properly exit JamKazam program? - SOLVED re 'JamKazam quit unexpectely'

[MikeTranch]

Thanks Jim, I had that same issue.  I use Mac and Windows, and both platforms are inconsistent in their use of single versus double click, and in some cases the user can alter the default behavior/expectation.  Like you, I've never seen an error message as a result.  Apparently JK only allows one instance instance of itself running at a time, which makes sense.  So when a second instance is launched (even while first is still loading), it terminates the 2nd instance.  IMO, it should do that silently, gracefully, instead of throwing an unnecessary error message. 

(Developers: it's very easy to detect a second instance and simply terminate it.  Just saying.)