BTW my headset is a USB headset which is connected to the main PC. I have a 3.5mm audio cable running from the speaker output of my second computer (P2A) to the line in on my P3D computer so I can hear output from my P2A through the headset on the P3D computer. What I have never been able to figure out is how to get the audio from the usb headset connected to the P3D computer to be sent to the P2A second PC.