I need help with my headset microphone, please!!?

I have a headset microphone, but cannot voice chat due to, what my computer calls, a lack of audio compression format. Is there any way to correct this? My computer has Vista, so that may be part of the problem.

Norma B2008-07-14T20:42:22Z

Favorite Answer

if it has a on-mute selection it must be in mute or you pluged it in wrong