Have you looked in the Slide Show menu under Set Up Show? Is it set to
Browsed at a Kiosk? This is normal behavior for that setting.
Unfortunately, the normal behavior for that setting is very inconsistent.
It is supposed to take you back to the first slide after 5 minutes of
inactivity, but on different machines that 5 minutes seems to vary quite
a lot, including not happening at all on some machines. That
inconsistency would explain your only seeing this behavior on this
machine.
--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.PowerfulPowerPoint.com/