I love this plane (Aerosoft DHC-6.) It's difficult to get much cooler than throttles on the ceiling. That's just good stuff right there. And there is a “fair to Odessa” chance that I rode in this very plane at one time, in 1980-1981ish. But. What's the deal with the radios? I can't tune them. The manual says to click on the knobs below the frequency display, but that has no effect. Was there a patch that I missed, or do I need a (or another...) dunce hat?