Problem with microphone set up in TeamSpeak

hi all
I am running vista home premium on a 32 bit operating system,which has just been system restored to factory settings.
The problem is this : I have full use of microphone on usb headset, it is recognised in windows and in online game i play, but for some reason it is not recognised in teamspeak. I have never had this problem before and i still use same mic as before, which i know works
help pls:confused:
 
Back