I just got a new computer with Vista. I'm trying to get a headset that I used on my old computer to work. The headset is a free one that came with some language learning software so there's no driver. In the sound manager, Vista detects the microphone as being plugged in - as a "Microphone/Line In - SigmaTel High Definition Audio CODEC", but no program notices any sound coming from it. It is set as the default microphone and it's enabled. It works on my old computer still. Is there anyone that could help me get this working?