Hi Peter Thanks very much for you reply, I have since fixed the problem. i had left the auto spread slides along music box checked as well as the synchronize music and slide check box ticked. So AS I had manually synced the beat of the music to the slide. the pte's auto sync function was working against my manual input , hope you can understand as I don't think i have explained it very well. Anyway, I find this an awesome program, of which I have barely scratched the surface of when it comes to doing great things. However i will keep chipping away best I can, and maybe one day I'll be good enough to help someone new, as you have. Today. Thanks again John