I've had my xbox 360 for over 6 months now and all has been fine.

Last week I moved a bookcase out of the room and re-arranged the TV/360/PC in the room.
I then went to play Tales of Vesperia 2 days ago and got into a battle to discover that it was showing up as having a Player 2, yet I've only ever had 1 360 controller anywhere near my console.

I turned off our PCs and the wireless network and its still showing up as there being a second controller

Does anyone know how I can get rid of this 'ghost' controller?