Now I have lost my Alt Warn. Sound bell ??? It sounds on the ground when I set an altitude on the altimeter knob. But as soonas I am in the air I Loose it together with other sounds like the clicks and safeties dings. I've reinstalled the gauge as Matt kindly provided instruction for me. Still it goes quite when I'm in the air ??? Strange :-/

Fixed! The Alt Alert Sound I had forgotten to change the value on the line:

SoundOffWhenSimIsSlew=0