.mac website wont let one page load

Our small company website is run through .mac and one of the pages can't be found for some reason: the "about us" page. All the other pages are ok, but a few have changed fonts. This all started about a week ago. Also, anytime we try to upload a new page or publish it all from scratch it says our internet connection has a problem, which it doesnt. Anyone have ideas? I thought maybe it had something to do with teh switch to mobileme, but apparently not. Thanks