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Thanks for stepping in Skuzzy! I finally decided to delete the game from PC and re-download, now everything is great, once again! Question: Is there a way for the game to be corrupted by an outside virus? While trying to research my problem, I ran security scans and found several problems! I did not know that somehow, I had disabled the automatic scans, which AVG runs everyday, about 6 weeks ago. Is there anything else I can do to protect this game, which is the high light of my life now. 79, soon to be 80, 10% vis in left eye, 20/30 in right eye, so I am some what limited in my operational capabilities, but, having been a professional pilot all my life until 1998, learned to fly in 1948, and I would do what ever is necessary to keep my game up and running, so anything you can suggest would be GREATLY appreciated.