Re: Cannot select DB.
The domain should be
http://localhost and the path should be
/~myusername/bbpress/ but that shouldn’t stop the database connection.
Do you know if you have PHP’s mysqli extension loaded (as opposed to the normal mysql)? If you do, try copying bb-includes/db.php to bb-includes/db-mysqli.php to overwrite that later file (it seems to be out of date).
Please let me knw if that helps or not.