I had this happen with my 4th WiiMote and from what I can tell it's some sort of internal WiiMote registration/ID conflict and/or controller#<=---=>player# mapping issue. Just remove the batteries from all the controllers and press the red button inside the battery compartment of the problematic one. Then put the batteries back into the other ones and reactivate them one by one. Theby bugzme - Homebrew Applications