Problem calling controller functions

[eluser]Unknown[/eluser]
Hi

I'm new to using CI but I'm loving it, however I have a small problem.

I've developed a single page application locally using MAMP and I've just uploaded it for testing on a remote server. The remote server is using php 5.2.1

I've set the default controller in the routes config file & I've set the $config['base_url'] correctly.

If I use http://my_domain.com/index.php or http://my_domain.com the page loads correctly, but if I try to call a function within the controller I am getting a 500 Internal Server Error.

I've tried to create a simple controller just to test it and I'm getting the same problem.

Here's what I've done to test.

Changed the default controller to: testcontroller

Created a controller called: testcontroller.php

Code:

<?php

class Testcontroller extends Controller {

    function Testcontroller()
    {
        parent::Controller();
    }
    
    function index(){
        echo "Index Called";
    }
    
    function functioncalled(){
        echo "Function Called";
    }
    
    
}
?>

Now if I go to
http://my_domain.com/index.php or
http://my_domain.com I get a page that shows "Index Called".

If I go to http://my_domain.com/index.php/testcontroller
or http://my_domain.com/index.php/testcontr...tioncalled
or http://my_domain.com/index.php/testcontr...ioncalled/
etc I'm getting the Internal Server Error.

Am I overlooking something? Its been a long week

Thanks

Carl