include main app controller only once

[eluser]gerben[/eluser]
While the method I descibed in my post works fine, I can seem to get CF's approach to work. Keep getting a blank page.

I've created app_controller.php in app/libraries/app_controller.php:

Code:

<?php

class app_controller extends Controller {

    function app_controller()
    {
        parent::Controller();    

}

//etc.

And my controller is set up like this:

Code:

class Player extends app_controller {


    function Player()
    {
        parent::app_controller();
        
    }
// etc.

I can't see what I'm missing here. Could the problem be that I changed the default path to the application folder? I had no problems with that so far.