Hi I have the same problem as you are having. I have several Captain Sim products and all are very good. However, I purchased the 727-100 and it works beautifully and now I purchased the 727-200. I have FS acceleration not the steam edition but am experiencing the same thing. The cockpit windows don't close and there is nothing up front working except the fire handles. The overhead nothing works either. The FE's stuff all works. Everything outside works like flaps and steering. I have reloaded product twice and removed the registry entry before the second load. I have no add-ons. So for the moment the airplane is not usable. The 727-100 works fine. The last thing loaded before this was the 777 1.6 upgrade. Any help would be appreciated. Thanks