I would like to add a couple of things to my earlier post.

Changing the NAV/COM settings using the Mouse Wheel only changes the frequency down, so delta dog is correct (it just depends on how you try to change the frequencies).

On the VC Autopilot controls, my HDG HOLD won't turn off regardless of RMB or LMB attemps! I have to use the 2D Autopilot. Turning it on works fine on the VC Autopilot.

Another thing is this. Clicking with RMB or LMB on COM1 dial for the primary (?) part of the frequency (123.95) changes the number by 2 places. e.g. if I want change it from 123.95 to 124.95 and use the RMB the frequency becomes 125.95 with a single click. This doesn't happen with COM2! It is easier to use COM2 because of this.

@LOU. Thanks for pointing out how the Autopilot AUTO G/S and MANUAL G/S work. Is that how it works in a real 727 or in the Captain Sim 727 or in both? In the mean time I will go and give that a try.

Mark