I bought the 707 a couple of days ago, and would love to fly it, however, I am unable to tune the radios, NAV freqs, or the ADF. The Transponder can be tuned, but nothing else in the radio stack.

Yes, I know that the left mouse button and right mouse button are supposed to tune them, but that does not work. The knobs move, but the digits don't. Read through both manuals and the Tech page, as well as did a forum search, but nothing has provided an answer for this dilema.

I have done a re-install, but it did not fix the problem. Am I missing something?