I have been using the S-55 for some time now but I always flew VFR. Today I had to switch to IFR because of bad weather at my home airport.

I discovered that I cant switch frequencies on the com and nav radio in the popup panel. The cursor changes into a hand when you select the buttons but when you click the indicated frequency does not change. In reality the frequency does change because you cant hear atc when you press the com radio. This makes it impossible to use the radios because after a few clicks you have no idea what frequency you are on.

Does anyone know how to fix it so you can see what frequency you have selected?