I had to do a system recovery, as a result I had to re-install JFK. That worked flawlessly. I did a re-install of GSX , that also worked. In windowed mode , I get Couati and the add on manager. My problem is that the keys don't work. I 've checked FSX and my other add ons and there are no conflict with the keys. I have Windows 8 , but everything is in Windows 7 capability mode. My UAC slider is all the way down.