#3 Update Status error before creating databases

[Anonymous]

After entering http://locallhost/commons/schemaupdater/index.php in my FireFox browser, I get the following error "Update/Install must be done on the web server for security purposes. If you are running PSCafePOS on a virtual host then you will need to modify the config.php and set cfg_installdblocalonly = false." I'm not running PSCafePOS on a virtual host so what could I be doing wrong?