The problem maybe that her account may not have the required permissions to view the image when not logged in as an administrator.
A simple way of checking this would be to view the module settings for the image, note the required security settings and then compare hers, yours and others permissions to see if they are different.
If they are you will need to change either the image security level, or her security level.
This sounds to me the most likely problem, as she can view the image when logged in as an administrator.
Good luck, Stewart Walker
www.nexxus.com.au
Stewart WalkerByte Information Technology