class include

[eluser]xinq88[/eluser]
Here I am again with a question.

Here is the scenario:

I want to create a Controller called MY_Controller extending Controller, so far no problem for me.
But then I want to extend the MY_Controller by 'AnotherController' so. This is not all, at last I want to extend the 'AnotherController' controller.

Code:

class AnotherController extends MY_Controller {
}

class AnotherController2 extends AnotherController {
}

But this: AnotherController2 extends AnotherController
doesn't work, the application can't find the AnotherController class (It does find the MY_Controller class though).

Or maybe I put the files in the wrong dir?
I have them in application/controller/