[eluser]jto1[/eluser]
P.S Junaid Atique did work for me also, so thanks
$this->output->set_header('Last-Modified: ' . gmdate("D, d M Y H:i
") . ' GMT');
$this->output->set_header('Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0');
$this->output->set_header('Pragma: no-cache');
$this->output->set_header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');