12Axes

Hey people.....Has anyone had a problem with accessing the plane in game? In my case everything is there except the aircraft!? It shows on the main screen ICON, in controls setup, module manager as installed-but the designer name is faded. However it is not listed in any flight selection; create fast mission, instant action, mission editor, etc. Any thoughts? Can it be re-downloaded? I didn't think you could?! Thx!