Overview:

For PostgreSQL password issues, see below:

Note:  If migrating to Holdem Manager from a competitors product, the postgres password is more than likely "dbpass."  If running the Holdem Manager installation, re-run the installation and use "dbpass" without quotes for the postgres password. 

Note:  If there are problems inside of Holdem Manager, please see the solution below.

If unable to retrieve the username and password. edit the pg_hba.conf file. Then any username and password will work.

To edit the pg_hba.conf file, do the following:

1. Go to C:\Program Files\PostgreSQL\8.4.7-1\data, move the pg_hba file to the Desktop.
2. Open it with notepad.
3. Scroll to the bottom and change all md5 references to trust. 
4. Save and close the file.
5. Move the file back to the data folder.
6. Restart the PostgreSQL service: Control Panel → Administrative Tools → Services

Holdem Manger and PostgreSQL will accept any password now.

See the general PostgreSQL Connection FAQ