A couple of our moderators were having login problems recently. If you are having problems one fix has been to delete cookies and start over.
I don't know what may have caused this problem but if was a problem caused by the site or the server I am sorry it happened. Try this path on your computer if it has happened to you.
1. Tools->Internet Options
2. Delete Cookies->OK
3. Delete Files->OK
Recent login problems
Moderator: Niner