Hello,Was just wondering if anyone else has this same situation, where Comm 1 VHF1 works fine, but after about 10 min into a flight it no longer works. Freq selection is somehow disabled-active or standby. Knobs rotate, but nothing else. Going to VHF2 works ok. I am using FSX win7 and latest build. I also notice it maybe where after I change views in virtual cockpit where it stops working. Any help is appreciated. The other thing is I keep getting ILS untunnable no matter what airport I fly into. I have latest navdach and am following procedures...thanks,Steve

I have no idea if it will help but have you tried the flight 1 registry tool?

I have not heard of that. What does it do?

http://www.flight1.com/view.asp?page=library It repairs the registry of fsx so it works again.

Hello,Thanks sandpatch. I believe that did the trick. Comm switches are working correctly, ILS Untunnable hasn't returned, and even the TOD pause is working again. Had been a long time since I've been in this A/C. I suppose something went awry somewhere at some time.Thanks again,Steve