Just bought this Microsoft Xbox 360 Controller (Wired) for PC/Xbox yesterday and it works perfectly fine on the PC. Makes gaming a lot easier in many ways. However when I take it over to the Xbox it flashes 4 lights and never fully connects. The USB ports all work and I've tried them all, so I can't figure out what the issue is. I have tried turning off the system, plugging the controller in and turning the system on via controller (Guide/Start button) as well as turning the system on with it's power button or another wireless controller or remote. All of these methods turn the xbox on, but none of them allow the wired controller to connect.