Same thing happened to me, as rdass623 said, it's window lock button. Yes, unlike other cars I've owned, when the window lock is activated, all window controls, including the driver's, are locked out.When the top of my Abarth is unlatched prior to lowering, the windows automatically lower about 6 inches. After this the passenger side window does not move either up or down. Took it to the dealer once already but it is acting up again. Ideas?