Security Parameter Problem in SAP ECC 6.0

Hi eveyone,

We have just activated the profile parameters written below in our new

SAP ECC 6.0 system.

login/min_password_lng = 6

login/min_password_digits = 1

login/min_password_letters = 1

login/fails_to_user_lock = 10

login/fails_to_session_end = 5

login/password_expiration_time = 90

We have tried to logon the system as DDIC, the system wanted a new

password. We have changed the password many times more than 5 times.

But when we try to give the old password, it still says that "The

password must be different from your last 5 passwords".

The problem goes on, even you inactivate the parameters in the profile

and restart the SAP.

How can we solve this problem?