Spring RTS Engine

I've been away from Spring for a while, and recently started playing again. Everything worked fine, but then I tried to change my nickname, was logged out, and now I can't seem to find a way to log in again. Every time I try, I get the message "Error logging to server[sic]: Bad username/password".

How do I remedy this?

Go in options and change to the name you renamed to.

d'oh. Thanks.