cannot login to isql with sapsa user

Hi all,

we have done system copy with a diff SID,

the system is up and running fine.

even from DBACOCKPIT ever thing is running fine. I can schedule backup, monitor the system, there is no problem.

but i am unable to login with isql. it says "login failed".

had tried with sapsa, sa, sapsso, but unable to login.

how do i reset the password or recover the old password.

thanks and regards