Roon won't start up again

Downloaded today on a Mac Mini running Mountain Lion. No problem initially, it was finding stuff. I must have clicked on something by mistake because it wasn’t finished but just stopped. I closed the program, and it won’t start. I rebooted the Mac, but nothing.

Check it’s not the server version you are running …if it is it should show up in the top menu area, and not in the dock.

How? The dock is the only place it shows, as it won’t start.

I solved it. I threw out the software and re-DL’ed it.