v1.1 1.4 update - test airfield stopping updater

Hi,

I had the Test Airfield map copied into my levels folder and the updater would not allow me to continue because of something with the "Test Airfield".

I apologize that I did not copy the error message, but I think that it had something to do with the Sound.

Anyway, I have deleted the Test Airfield map from my levels folder, and it is allowing me to complete the update.