Hi, I have a problem, which I don't understand why. I bought the CS 767 p3d version 1 week ago. the first thing I noticed was that I heard a short peep tone when taking off at the start .. but it goes away immediately. when I sink with the machine below about FL70 .. I constantly hear a peep tone .. a peep peep .. every 2 seconds approximately .. until the landing. I can't locate where from .. it's not the terrain. I'm on landing approach in EDDM and it's pretty flat there .. but everything was fine in Terran Radar .. in case the problem should be. peeping only stops after landing. Do you have tipps for me ? thank you