Mark, thanks
Yesterday I did find it, this password is also PO8
But somehow I am not able to change it
I enter new password in nav8 for user PO8, make apply, and local database is not opened later saying, wrong password or user until I did not old PO8 password
This happened not at all computers, strange
This not this problem with the rest of users, I was able to change password for system and sys
Vladimir

>My guess, is that on the problem computer, the Server name entry in the local TNSNAMES.ORA file is not pointing to the correct onstance of Oracle. Oracle passwords are not local to the client computer. They are stored in the Oracle database.