There are a number of ways to go to the end of the show. If you are clicking
on the last slide (or hitting the space bar or the right arrow key or ...),
don't do that and just leave the slide up there. But I'm guessing you are
using automatic transitiions to go from slide to slide. In that case, you
should turn off the transition for the last slide. In the Slide Show menu,
choose Slide Transition, and uncheck the box that says to advance the slide
automatically after xx seconds.
--David
David M. Marcovitz
Author of _Powerful PowerPoint for Educators_
http://www.loyola.edu/education/PowerfulPowerPoint/