The Macintosh won't be able to run the PC version of the viewer and won't
autostart when you put the CD in the drive, so for starters there are those
differences.

The Mac user would have to have PowerPoint installed for the presentation to
run at all and depending on versions and such, might have to start PPT
themselves then open your presentation in order to play it.

Whether everything then looks the same will depend on the fonts you've chosen,
the types of animations and the version of PowerPoint and other factors.

-----------------------------------------
Steve Rindsberg, PPT MVP
PPT FAQ:  www.pptfaq.com
PPTools:  www.pptools.com
================================================