editing in movie maker

I saved movie I was working on.  When I went back to edit, all the thumbnail clips in movie were of the very first photo in my movie.

when I play/preview all the photos show up/play.  Since I can't see all the different photos on the storyboard, I am not able to do my edits.  How can I change the view so that I see all the photos that I imported into movie maker? 

Please help quickly as I am working on a deadline for a presentation.

Thank you so much for your help!