Gentlemen, after a massive Reformat of all my hard disks, I seem to have overlooked saving to CD the information on how to activate the NAV 2 radio in the aircraft configuration file, can anyone please help.:-zhelp

Check your aircraft.cfg in the Radio section for a Nav2 parameter and add a statement like this. Details are in te Aircraft Container SDK in the Radio Section.Nav.2=1, 1, 0Milton