Cursor moving on its own

[PWubb]

So, here I am, playing Mario Galaxy 2, trying to set up my controller.
But hear me out: I've tried everything but the cursor still moves to the left without me touching anything. I've tried reinstalling the software, resetting the settings multiple times and changing them around. Nothing seems to work.

Just to clarify, I'm tryna turn on the "Relative Input" setting from the Motion Controls and IR section.

edit: By the way, I'm using an Xbox 360 controller.

[ExtremeDude2]

Have you tried increasing the dead zone?