Red x appearing instead of pictures please help?

[Help me please!]

I've created a presentation in Powerpoint and there all lots of jpeg images.
When I give them to a people on a disk and they save them onto their computer
on some peoples' computers they work absolutely fine but on others just red
Xs appear instead of the pictures.

 

[Luc]

Hello,
Maybe this will help:
http://pptfaq.com/FAQ00064.htm