First I tried running BackTrack 5 from VirtualBox on my Win7 machine. It could use the Ethernet fine, but I couldn't detect any Wifi. My network card is an Alfa USB network card (model: AWUS036H). I tried booting from a liveCD on another computer and the same issue is there; I can connect to Ethernet but not Wifi. When I type
Code:
lsusb
, I get
Code:
Realtek Semiconductor Corp. RTL8187 Wireless Adapter
, and I think that's my card, so it seems like my card is detected. However, when I plug my card into my Win7 machine, the green lights on the USB adapter turn on. This doesn't happen when I plug it in to the computer running BackTrack.

Any help would be appreciated.