PPT files generally open in Normal View while PPS files generally open in
Slide Show View. If I understand you correctly, you are double-clicking
on a PPS file, and it is opening in Normal View instead of Slide Show
View.
One possiblility is that your PPS file isn't really a PPS file. Windows
allows you to hide file extensions for known file types, so it is
possible to have a file named MyPres.pps.ppt that will look like the file
is a PPS (because Windows will hide the .ppt extension), but it is really
a PPT file.
If this is the case, you can either turn off the Windows feature that
hides extensions of known file types, or you can open the presentation in
PowerPoint and choose Save As. Under File Type, you can choose
PowerPoint Show (*.pps), and it will fix the extensions.
If this is not the case, you probably have a problem with your registry.
--David
--
David M. Marcovitz, Ph.D.
Director of Graduate Programs in Educational Technology
Loyola College in Maryland
Author of _Powerful PowerPoint for Educators_
http://www.loyola.edu/education/PowerfulPowerPoint/