my $auth = new CGI::Session::Auth({
      CGI => $cgi,
      Session => $session,
      DSN => 'DBI:PgPP:dbname=databasename',
      UserTable => 'users',
      DBUser => 'dbusername',
      DBPasswd => 'dbpassword',
      DBAttr => 'PrintError => 1, RaiseError => 1'
  });

print "Error\n" if ( not defined $auth );