Androgin,
Try this free add-in:
Single Slideshow Window - http://skp.mvps.org/sngsswnd.htm

"androgin" wrote in message
...
I am working on a genealogical presentations (pictures) witch involve many
families linked to there specific presentations .When i navigated acrosse
the programm with all presentations openned my computer overload.How can i
close the precediong presentation so to have only one presentation open at
a
time.

Thank you
androgin