Problem opening any thread

[LongTimePCUser]

In IE9, in Firefox 6 and in Chrome 13, I am seeing a problem when clicking on a thread.

The thread opens and immediately the forum view opens and the thread is closed.
If I click on "back" in the browsers, then I can return to the thread.

This started happening a few months ago.

 

[VirtualLarry]

tried clearing your cookies?

 

[ViRGE]

Obviously there aren't a large number of other people having that problem, otherwise the forums would have ground to a halt by now. Considering it's happening in all your browsers, are you in any kind of corporate environment that may be scanning/rewriting webpages as you load them?