Bon Railey

I purchased my PTE 7 last September, and so far have completed 2 slideshows without any problems, but having just completed my 3rd slideshow with 422 images in it, I am getting a message regularly scrolling across the presentation, which is "Created in trial version of PTE Deluxe www.wnsoft.com". Has anyone else encountered this problem, and if so, did you manage to remove it. At first I thought it might be a key problem, but I can not find a way of re-entering the key.