When trying to view an online car auction website (which uses Java to list details of each auction data line in a window pane to the right of the main window when I click on the data line), I have recently started getting an "error on page" message (when I check the error itself, it says "access denied"). I'm not sure what has changed in the system recently that should cause this. However, when I create a new user account in XP (Home, SP2, std firewall, Avast AV) and access the site through it, there are no problems. So, what will it be in the main user that I use all the time that has got it's knickers in a knot? I've deleted all the internet cache and cookies in IE 6 (after down-grading from IE 7), and reset IE to what I assume is "default" in all respects (except for my favourites). The site won't work properly in Firefox, so there's no help there. I will, if I have to, migrate all my data from my main user to the new test user I've set up, but it's such a hassle that I'd rather know how to fix the main one.

Thanks in advance.