Just upgraded to from 7 to 8 last night. Everything works flawlessly on 7 by the way. All FSDT scenery seem to work perfectly fine on 8 but whenever I try to bring up the GSX menu(ctrl+F12), nothing happens at all. In the Addon Manager it says that the product is active. I tried to reinstall but still no luck. Any suggestions?
EDIT: Added admin rights to FSX. Everything is fine now.