If your presentation is aimed at 'screen based' presentations, then the
trick is to keep any pictures/graphics at a similar resolution to the final
projector/screen
if the end screen/project will do 1024x768 pixels.... then that's what to
aim your graphics at (if they are to fill the screen)
there's a tutorial on this at
http://www.awesomebackgrounds.com/powerpointgraphics.htm
see also
Why are my PowerPoint files so big? What can I do about it?
http://www.pptfaq.com/FAQ00062.htm
And certain versions of powerpoint can trim the excess fat for you - what
version are you using?
cheers
TAJ Simmons
microsoft powerpoint mvp
awesome - powerpoint backgrounds,
http://www.awesomebackgrounds.com
free powerpoint templates, tutorials, hints, tips and more...