(I hope this is the right place to post this, if not, appologies.)
I've just recently installerd Backtrack 4 and if I go to the Shell - Konsole and type in airmon-ng. Nothing comes up for interface, chipset or driver.

The OS is installed to my Hard Drive.
My built in card is a "Broadcom 4321AG 802.11a/b/g/draft-n Wi-Fi Adapter".

Any help would be greatly appreciated.