I go into the menu on L4D -- Keyboard/Mouse -- Enable gamepad -- Edit keys, and the controller doesn't do anything when I try and map the buttons. :/
I'm not downloading anything to fix this, I know there is a way to fix it without needing to download or install anything.
更新1:
Yes, as I've explained I've tried all of that ten times over. :/ My controller is not responding on this game and this game alone.