John - I just check the Finder on his file (my friend's) -- it was done on MS PP "97-2004 presentation" -- and looks fine.

So what does that tell me?

What would be the best formate for me to create in? And do I just keep going in the new MS PP presentation (pptx)

Or switch to another,

Or start all over in another.

My problem -- I tried to send to myself an e-mail with the file, as a form of backup, and it timed out and would not go, being 33.8 MB for 47 slides.

Is there a way to make it smaller? and do I start over?

Thanks, Roger