[CaptainKen]

It should show a progress window, as it goes through each show/movie you currently have scanned in.

Then, after checking each show, it goes back and goes through all the ones it identified as missing artwork and downloads it. This process should like very similar to when you run it on one movie.

I'm not getting any kind of progress window. That's what mde me think there must be some kind of problem.

If memory serves me correctly, I do not get a progress window. I get one showing that it is searching and another when it is completed. There is usually a long gap between them, regardless of how many new media I have added. I think there is a setting something like quite mode.