I am trying to record a narration. I have plugged in my microphone. It works when I record narration in Windows Movie Maker. I follow the directions in the "Show Me" tutorials, the PDF manual download, and the little quick start manual, yet I get no sound when I playback the recorded narration. I'm arming, clicking record, etc., -- but nothing seems to be recording. Does anyone have any suggestions as to why this is happening?