Klaus,
I just opened your config file and saw the D1k.wav.? So, on my file, I switched to D1k and no clicks. Nice.??
My error was in just looking at your sound files and using D1.
On another subject, do you have any info on relative sound volumes?? On several of my projects some sounds are very loud and don't respond to the "master" volume slider and on some others the sounds are too low in relation to the engine sounds.? I think I saw a previous post on this, but I can't find it.
conrad