Images Not Loading Today in IE 6

[Mary9915]

I administer the IT services at my company and I'm having an issue that is stumping me.

On only a handful of computers at my company, images are not appearing when using Internet Explorer. These computers could see the images yesterday.

Computers are XP Pros. IE is version 6. They have McAfee Sonicwall Antivirus loaded. They are behind a Sonicwall Firewall Device.

No new programs were loaded on the machines. I ran spyware and antivirus scans -- those checked out okay.

Here is the weird part. If I log on using the administrator login, I can see the images. If I log on with the user's logins (they have administrator priviledges) I can't see the images.

I tried downloading Mozilla Firefox on a couple of machines. In Firefox, the images can be seen. Unfortunately some of the web-based programs they use don't support Firefox, so I can't use this as a work around.

I've check the Sonicwall forums and no one else has posted with this problem.

Any ideas???


Edited to add: I've deleted the cookies, cleared the history and deleted the temporary internet files also...