I purchased and registered JFK, ORD & LAS sceneries. Afterward, FS9 would not load. I found out from the Flightsim.com forum that the culprit was the Scenery manager. I removed the bglman.dll and FS9 worked again. Of course, the sceneries don't work now. Do you have a scenery manager that is compatable with Windows7 64 bit?
Jerry