I know some folks have had trouble logging in here at SC.net, and I just now got kicked out for too many log-in tries, despite having tried only once (and via a saved password to boot).
In case it helps anyone else:
I found that hitting the "forgot my password" button (despite not having actually forgotten) cleared the problem up. The system sent me a new password in a few seconds, I've been able to log in and change it to my own choice, and I'm right as rain again.
Hope this helps!