No table display

In my Drupal installation this module displays no table information from my mysql drupal db. The "Check", "Backup", "Empty", "Drop" buttons are directly below the "tables", "rows", "action" headers.

Could it have anything to do with my $db_prefix setup? I am running multiple sites off the same code and sharing user information accross the sites.

$db_prefix = array(
'default' => '',
'authmap' => 'drupal.',
'profile_fields' => 'drupal.',
'profile_values' => 'drupal.',
'sequences' => 'drupal.',
'sessions' => 'drupal.',
'users' => 'drupal.'
'users_uid_seq' => 'drupal.'
);