Incorrect password when login to CAL solution instance

I created a trial instance in CAL solution, "SAP NetWeaver AS ABAP and SAP BW 7.5 SP01 on SAP HANA SP10". However when I connect to SAP GUI, I got error message saying "incorrect name or password" in GUI logon window, when I use I number and the passward defined during instance setup.

There is only one place to define passward when setting up instance, right? Can anyone help to tell me where is the correct way to setup password?