"You must be logged in to view"

I have Windows Vista Basic Home, and just recently have ran into a
problem. When I go to a web-site that has hidden e-mail addresses
(click here to view, etc.), when I click on it, I get an error message
stating "You must be logged in to view". I don't know what I'm
supposed to be logged into (??), but I am correctly logged in on
Windows Vista when I boot up. In fact, I logged off there, and re-
logged in to make sure it's correct, but it doesn't correct the
problem.
I've read other postings dealing with similar problems, but not this
exact situation. Any help would be appreciated!