Hello, I bought fs2crew pro for the Airbus and it says the aircraft does not appear to be installed - "FS2Crew button Control does not appear to be installed fot the Aerosoft Airbus X A320/321, FS2Crew may be purshased at: www.Fs2Crew.com. If you tkink FS2Crew is installed and you're getting this message, please visit the FS2Crew support forum for assistance. You likely have a comon FSX registry problem." and I have no idea what I have to do. to repair this problem. Thank You for help!