Just bought the Saitek Pro Flight Yoke system. I have the Yoke, Foot Pedals, Throttle, Trim Wheel, Switch Panel and Comm Stack. Everything works great except the switch panel and comm stack (radio). I've tried plugging them into the yoke system, it has power, no results. I've tried plugging them into the iMac, no results. This is really frustrating as I was under the impression that it should all be plug in play. Are there any solutions to this?