Your username, and as I recall but I'm not sure your password, should not be any more than 16 characters and I'm guessing no symbols for the password.. meh, sorry if I'm incorrect on anything.
So do you have any of these in your username and/or account? If so, I'd suggest making a new account and making it like that... sorry. Also, your password is CaPs SeNsItIvE, so if you have caps in your password then be sure to add it in, no?