Sorry about a very old problem to do with e-mails

I have Outlook 2002 on two computers.  As far as I can tell every option setting on the two versions is exactly the same.  However on one computer pictures within a received e-mail are visible but on the other are replaced by an empty space and the red cross.  Both computers are running NIS 2012.  Is it possible there is a difference between a setting in NIS 2012 which is causing the problem?