kbaker,
What version of powerpoint are you using?
In powerpoint 2002/XP I clicked Help...then entered playlist into the clippy thing.
The fourth entry was "use command line options to control a playlist"....the help was helpful. I'd post it here but I
don't want to get in trouble with copyright.
Here's a snippet
For example, to run the Pres1.ppt presentation repeatedly until you press ESC and then run the Pres2.ppt presentation
repeatedly until you press ESC, use the following:
/l Pres1.ppt
/l Pres2.ppt
However...I find it much more seamless to follow this
http://www.powerpointbackgrounds.com/powerpointlooping.htm
Cheers
TAJ Simmons
microsoft powerpoint mvp
awesome - powerpoint backgrounds,
free powerpoint templates, tutorials, hints and tips etc
http://www.powerpointbackgrounds.com