okay, what you're gonna have to do is go into options for play control, in there you should (I'm doing this from memory, mind you), have a play back option or something or control panel???? Anyhow, just look around and eventually you'll see a section with boxes to choose from. These are the sound controls that will appear in play control. Put a check mark next to 'mic' and then apply and okay. Now mic should appear in there. Just check mute.