McGroogle
I wish to put you straight on one little matter, i DO NOT have anything to do with the running of this forum, but i do help out members when i can.
Right, let us try something else to help you out of your predicament.
Go to "tools", "internet options", click on "delete cookies". click "ok". Now close your browser, open it again and try to sign in.
I hope this helps (if it doesn`t, please don`t blame anybody on this forum)
Dave