Found a great 737-200 add on for MS Flight Sim 2004, but I can't seem to get the nav radios to tune for approaches. The comm radios work fine, but the numbers on the nav radios won't change using either the +/- arrows or the N key function. Anyone have any advice for this, or is this just a problem with my download?
http://tinmouse.org/
http://tinmouse.org/