I seem to have found the problem myself this morning while drinking coffee before work and tinkering. However, Al was right. The time line needed a tweak, but ran OK in the timeline player mode. I needed to extend the gap between slides in the time line or PTE appeared to get confused. For the technical bit I am using a 2.7 chip PC, 1.5 gig of ram, latest PTE version and loads of slides. (not counted them yet) and one piece of music about 4 mins. Anyway I am getting more experienced with the time line now. What I have been working on is a much better jigsaw AV (well thats the plan) One where although only one image is used it does not become tedious or slow. I suppose you guys will have to tell me if I have succeeded and I will post it as soon as I have finished it. I would like to thank all the quick replies to my problem, what a team! www.bbdigital.co.uk