I downloaded the free Photostage Slideshow Creator, imported a single photo, assigned a fadeout transistion, and created a 15 second narration. I then created a slideshow file, making the file extension .swf. When I view the file, by double clicking on the file from Windows Explorer, Chrome, not my default browser FireFox opens, and the single photo appears, fades, and then re-appears continuously. The sound track does not play. Ideas??