Mark, can explain me why I lost my sound when I fly with "Real Environment Extreme Weather Engine"  active, or while I fly on IVAO, so when my FSX is connected to the network? I tried to load the aircraft twice, in this way I have the sound ok; but soon I start REX weather engine, the sounds disappear. Than I tried first to start REX weather engine, than to load the aircraft twice but the sounds won't work.
Can somebody help me????