do i need to buy a sensor when i purchase a brand new official xbox controller? the controller is an official white xbox 360 controller, i believe its a early first batch model, the box doesn't say anything about whether or not it comes with a sensor. so to sum up: i just bought a xbox 360 console (doesn't come with any controllers or accessories) for the first time in my life and i don't know whether or not i need to buy a sensor for a brand new official xbox360 controller. so i'd greatly appreciate it if you guys could enlighten me on this, as i'm not familiar with how all of this new fancy wireless stuff work since i haven't had a home console since the dreamcast. thanks for the help everyone! cheers!