We have some surveys that were set to expire at the end of 2007, but mysteriously we discovered that although an IE6 user will get the correct error about the survey no longer being active, IE7 users were able to display the survey.

Well, that was very strange. The start/stop dates were correct when I viewed the properties, and the survey I was testing showed "active" still, so I deactivated it and still, IE6 users got the right message, but my IE7 window displayed it.

I don't think my machine had the survey cached, and it actually came to my attention from our survey writer (I just admin the server it runs on), and he had the same symptoms.

Any clues why it might do that? I'm going to try resetting IIS on the server in case it had something cached server side that was doing anything.