The system says "No audio devices are installed"  I never tried recording before as I am trying now to record now for the first time in a video program.  Speakers work fine   I'm running Vista System Type: XPS/Dimension 420 .  My Graphics cards if that's important is: WX092 Card, Graphics, 256, 2600, Parker MRMGA+3

How do I get the computer to see the microphone?