Sadly I don't have an example of my problem online, it's on an intranet.
But my problem is definately the opposite of this problem, my URL doesn't change, but I want it to.
By scenario is slightly different, and this may be the cause of the problem, I'll try to explain better.
I have a page with an HTML form on, the user fills in the details and hit's submit. This calls a PHP program which validates the data and posts it to a database. Depending on the data the user has provided I have to redirect them to different pages, for this I use the header() function.
After the redirection has taken place, the URL still contains the address of the page with the HTML form on.
I will try and get an example online, and see if it works differently then, I have tested it with IE5 and NN4.7 and I get the same results.