I generate a slideshow in Serif PagePlus and one of the options when I publish to pdf slideshow is "Loop Slideshow". This has worked fine for years, until, by the look of it the installation of AR X. In AR X the slideshow just hangs at the end of the show so my rolling message board no longer works. Setting the Edit > Preferences > Full Screen - "Loop after last page" option in AR enables the slideshow to loop OK. However this isn't needed in previous versions of AR and I can't reckon on all users having this option set.