Unable to view embedded images in Notes Client and in Inotes6 client

When a user recieves a message with embedded images, he sees the red x and no image appears. This is not is the case for all users, there are a couple of users that are having the same problem.

The person document is set for “prefers MIME” and the user uses inotes exclusively.

Any help or advise is appreciated,

Regards,

Nazik