How to load extended core system classes from controller?

[eluser]ccschmitz[/eluser]
Remember, you are extending the input library, not creating a new library called 'MY_Input'. You are trying to load a library that doesn't exist. You want to load the 'input' library, but it is already [email=http://ellislab.com/codeigniter/user-guide/libraries/input.html]initialized by CodeIgniter by default[/email] so there's no need to autoload it. If you remove 'My_Input' from being autoloaded you should be good to go.