Is the computer using the microphone or has the line/USB been selected in the "Sound card" settings.
You know, that's a good question. I have it set up so that the audio comes to the mic input from the TS-2000. My USB cable is to control transmit with the radio via the USB Cable. I didn't know I could select a USB input on the sound card. I'll have to check that out. Right now I gave up on it as it was frustrating me!! For what it's worth I am using windows 7 on a Toshiba Satellite a couple of years old. Thanks for thinking of a solution.