Hi Fran
I would have a look at graphics hardware acceleration if I was you:
How to set graphics hardware acceleration back
http://www.pptfaq.com/FAQ00129.htm
Lucy

Signature
Lucy Thomson
PowerPoint MVP
MOS Master Instructor
www.aneasiertomorrow.com.au
> Photographs are visible on the final presentation but not when you view
> individual slides which makes it difficult to do anything with them.
> we would like to make them visible again
> Powerpoint 2003.