setting a new password for user Postgres...

There is no default password for user postgres on a fresh Postgres install, so you need to set it. On the command line (linux bash), just type:

     $ sudo -u postgres psql

This will start the postgres interactive console. Use the alter user to change the password:

     postgres=> alter user postgres password 'yournewpasswordgoeshere';

And your are done.  =)

I'm using HeidiSQL to interact with postgres by the way:

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