Oracle Database Discussions

We just upgrade to Oracle. I have one of three user ids that cannot login in. I get:

An error occurred while establishing the connection:
Type: java.sql.SQLException Error Code: 28000 SQL State: 99999
Message: ORA-28000: the account is locked

I had a tech person trying to login in with the wrong password. I've tried unlocking the account with:

alter user xxxxxxx account unlock;

It says the user was altered but I still get the same error message. What am I missing?

Thanks