I am finding the PTE slide shows I create on my XP PRO computer using 4.48 and put on a cd (or even running them directly) will not run on my Vista computer (brand new computer, came with Vista Business). In particular, when I have an intro slide show, and then run a slide show from within the intro all is fine until I try to exit out of the second show. It locks up. I have tried several cds and several diferent shows. Would it make a diffrence if I used version 5? Would it make a diference if the PTE slide shows were created on the computer with Vista? Thanks.bri