Thanks for the reply. I'll try flying the front course and see if it works that way. The Q400 does have a "back course mode" on the auto pilot, so I'll try playing with that and see what happens. I would still have thought the CDI would show up, but the Q400 may work differently on a back course than I'm used to. I'll try my A2A and Caranedo aircraft to see if that works differently.