I posted about this last year, but as far as I am aware, the problem
still exists when transferring a powerpoint file made on a Mac to a
PC, so I thought it was worth posting a reminder:

Make sure there are no animated slides* in your Powerpoint files -
when transferring them onto a Windows PC (which is what is provided)
they won't work - you'll just get a "Missing Plug-in" error. I've
also been told that a similar problem occurs (a big red X appears
instead of your image) if you include an image by dragging it from
the desktop (or another application) rather than using "Insert
Picture" or copy and paste.

If anyone knows an alternative solution to this please chip in.

Happy New Year.

naomi.

* e.g. text or images appearing/disappearing, not mpeg movies.