Keyboard shortcut conflict (e.g. Ctrl+W)

[SuperSurfer]

I have the same problem my CTRL key is Circle button and W is analog forward. First i was wondering whats happening all the time then i realized it must be some hidden keyboard shortcut. (Is there a way to see all the hidden shortcuts so i can map my keys differently?) I also noticed that backspace button and delete button are recognized as the same key when you try to map them.