"Can't" is a strong word. There might be ways to get most of what you
want, but they might be more trouble than they are worth. I could imagine
creating a video of an animated slide show and displaying that in a small
box on a slide. This might give you what you want if you don't need all
the functionality of PowerPoint in the small box, just the animations to
happen in a preset order with preset timings.
Another option might be the LiveWeb plug-in
(
http://skp.mvps.org/liveweb.htm). I'm not sure it plays properly in a
little window or takes up the whole slide, but it could be used to run
something (either the PowerPoint itself or the PowerPoint saved as a Web
page).
Redesigning might be your best option, but it might not be your only
option.
--David
--
David M. Marcovitz
Microsoft PowerPoint MVP
Director of Graduate Programs in Educational Technology
Loyola College in Maryland
Author of _Powerful PowerPoint for Educators_
http://www.loyola.edu/education/PowerfulPowerPoint/