Three things to check right away:
1) Do you have SP1 or SP2 installed? If not, go to Help--> Check for updates
and get the latest updates.
2) Try turning down Hardware acceleration. This entry from Steve Rindsberg's
PPT FAQ will help:
How to set graphics hardware acceleration back
http://www.rdpslides.com/pptfaq/FAQ00129.htm
3) Check to see if you have the most recent video drivers for your computer.
--
Kathryn Jacobs, Microsoft MVP PowerPoint and OneNote
Author of Kathy Jacobs on PowerPoint - Available now from Holy Macro! Books
Get PowerPoint answers at
http://www.powerpointanswers.com
I believe life is meant to be lived. But:
if we live without making a difference, it makes no difference that we lived