I looked all around my sound settings, and they are all on and turned up. My PMDG 737, FBW320, Headwind A330, etc. all work fine. I do have FSRealistic that I went through and double checked everything. So, I have all three variants of the 787, including the Kuro and Horizon Simulations editions. In all three of them, I just hear the GPWS real faintly, so I was wondering if there could be a volume control inside the cockpit.? Thanks