I just wanted to give you an update. I checked the IE7 settings against IE6 and they were the same, with the exception that IE7 has more settings than IE6. But none of the addition settings seemed to be for things that would affect how I see the webpage. I don't see any sort of security message on the page. My IE security is set to medium. All three computers have the same virus protection program with the same settings

So, I decided to upgrade the two PCs with IE7 to IE8. Unfortunately that didn't fix the problem, even in compatibility mode. I haven't had time to play around with the IE8 settings yet, though.

Thank you for trying to help. I had just wanted to let you know what's happening in case you or anyone else has thoughts about it or anyone else has the same problem.

Kindest regards,
-Donna