Inside the driver's door of my Mazda 6 TS there are 4 buttons for making the door windows open & close. The driver's door button still works - but from this morning, the other 3 windows won't open. I can open them from their own buttons - but not from the buttons in the driver's door. Is there a secret switch somewhere that I need to enable? I can see a fifth button (behind the other 4) which looks like it should do something but that's having no effect.