I take a collection of slides (120 on the most recent occasion) and click on Slideshow. After adjusting the various parameters to include a 8 second duration and 2 second dissolve, I click on Play All. The slideshow starts properly and runs for maybe 20 slides - and suddenly goes back to the first slide and starts the show all over again.
The place where it restarts varies each time - sometimes it will be after 20 or 30 pix, sometimes it gets half way or even more before returning to the first slide.
I'm using a MacBook Pro and LR 1.4.1. Anybody got any ideas what I can do to get a whole show to run?