Hiya, I had spend quite a bit of time updating a ppt presentation for work and went to use it today and a whole load of the slides, which had previously been fine came up with huge black crosses of doom. Previously they had had a variety if images, links and tables on them.
PPt was on my pen drive. Came home to try and sort it and opened copy on laptop, which was fine I saved it before trying to duplicate it to pendrive and it did the same thing... arghhh.. any suggestions why this has happened? Or how I might rescue my work?

Cheers Gwen