Unable to load the requested class

[eluser]briang[/eluser]
OK, I think I understand the "MY_" prefix better now. It is only for extending native CI classes.

Other than that, library files do not need the prefix. Correct?

I was trying to (excuse my terminology) "double extend" the Controller.

Theoretically, I was trying to do this: "Auth extends MY_Controller extends Controller".
Was attempting this by creating an Auth.php that extends MY_Controller, while having the MY_Controller.php extend Controller. Then in application/controllers/, create a controller class 'New extends Auth', to gain a level of authentication.