I recently bought an Intel DH67BL motherboard. I connected a headphone mic[into the correct port (back panel)] and the Realtek Audio Manager showed that the mic was connected.But when I started speaking , nothing was recorded. I checked the control panel "Sound" option and it showed that the mic was functioning, but no sound was recorded and the bars didn't display any sound reception. I tried a desktop mic and the same happend. Plz HELP !