Running XP 10.35. I have recently experienced what I think may be a bug -- the standby comms frequency in the default 172 is changing itself. This occurs after tuning via mouse click on the GNS 430 buttons, then flip flop, then the standby freq is off by 1 or two major digits. It has happened on every one of my last few flights. I wonder if anyone else had experienced this. I can't scientifically prove (yet!) that I haven't miss clicked

Todd