"You are not authorized to view this page"

For some reason, I have been unable to access www.georgewbush.com for the last 10 hours or so. Bizarre. Just looking for some of the Republican campaign's latest ads, but no dice. This is the Internet Explorer message in its entirety:

You might not have permission to view this directory or page using the credentials you supplied. If you believe you should be able to view this directory or page, please try to contact the Web site by using any e-mail address or phone number that may be listed on the http://www.georgewbush.com/ home page.

I wonder the reason. Oxford's intranet perhaps? Strange.