I went to the site with 4 different browsers.
I was able to access with 1.
What browser are you using and have you added any BHO's?
What are your security setings?
Try adjusting those and also make sure that you hve that site listed a safe site. If not then if you are using IE it will not permit you by default if you have installed the latest security Upates. Here is the message I got with 3 of the Browsers.
This server could not verify that you are authorized to access the document requested. Either you supplied the wrong credentials (e.g., bad password), or your browser doesn't understand how to supply the credentials required.
Additionally, a 404 Not Found error was encountered while trying to use an Error Document to handle the request.
If you need additional help with the security settings let us know.
This is also a known issue on MSN sites as well, since people have installed the latest updates.
Thank you Jitaa