If there is no $base_url set clear cache (/admin/settings/performance) should be enough.
> If my live site is http://example.org/communitysettings.php -- modify $base_url. Documentation is inline there in settings.php
>
> And my backup is http://example.org/backup
>
> When you go to the backup site, all the links generated by Drupal still
> say 'http://example.org/community/<something>'.
>
> Any ideas?
Hope this helps,
-D