For some reason on the site, I can't actually "log out" of the site. Usually when I do this, it will take me out and make me re-enter information to get back in (I have two accounts on the site that I use. I test ranks with one of the accounts I make) but I can't seem to log out of my profile to make the account switch.
Just a heads up.
Depending on your browser the actual options might be different.
I know in Firefox you can actually choose an option to clear authenticated sessions.
Not sure if IE has anything like this or not.