I have had this happen in other models from time to time and I have it now with the AlphaSim S-55. When I change from one view to the next, the sound reverts to the "idle" sound rather than switching to correct view sound. For instance, I'm flying in the VC, a nice throaty sound is present. . .I switch to the exterior and I get the chuga-chuga-chuga "idle" sound, but if I hit the "Q" key and release the sound switches to the correct exterior sound. The same process is required for the Tower View, once the Helicopter is within earshot I hear the "idle" sound, hit the "Q" key and it's fine. Anyone know why this happens or if there's a fix for it?