Usernames and passwords are case sensitive. "ImaUser" is not the same as "imauser"or "imaUser", etc. "TqBf7734" is not the same as "tqbf77343".

1. Check to make sure that your "cap lock" key is not on.
2. Be sure to enter your password or username exactly as provided.

If the above fails, you should use the steps to recover you username and password.  Your recovered password will be a random combination of letters and numbers. You can cut and paste the password and username to gain access to the member area where you can change them to something more memorable if so desired.