A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
I am not sure if this helps but I had the exact same problem described above and simply saved the images to my local drive and then recreated the slides from my pictures folder. Initially I had simply cut and pasted them directly from an external source (screen clipping) without saving them to my hard drive. Now it works fine as long as I build the slide from images stored locally.