This is my first question. I have a 2000 xk8 convertible. Today when opening the driver's door window the rear quarter windows also went down. Although the door window closed normally with the window switch, the rear windows will not close. I've checked the fuses. All ok. I suspect a malfunctioning control module rather than relays or regulators, since that is the only place I can imagine the door windows and rear windows could be connected and activated by the door window switch. Any advice would be extremely welcome.