I'm using an older version of PTE (v. 3.75) and it seems to work great most of the time. I work in a photography studio and we use the program to create slideshow presentations. I'd say about 1 in 4 shows will freeze up between the two songs that we synchronize the photos to. There's usually about 60-90 photos in each slideshow. I'm running PTE on a fast computer with Windows XP...does anybody have any suggestions?