More than your audience will tolerate. <G> Seriously, there are no numerical
limits. With all components, there comes a time when a presentation is too
large or demands more system resources than are available and that's when you'll
know that you've hit a limit. I predict that will occur long after you've
exceeded the pain level of the audience and they've left the room or fallen
asleep.
--
Sonia Coleman
Microsoft PowerPoint MVP Team
Autorun Software, Templates and Tutorials
http://www.soniacoleman.com