I just installed Backtrack 5 in Vmware and i'm facing some difficulties with it when trying to connect to a wireless network with my USB wireless dongle.

I am able to start it up with ifconfig wlan0 up. I'm also able to see wireless networks in the wicd network manager, but when trying to connect to one of the wireless networks my wlan0 goes down immediately. What am i doing wrong?

root@bt:~# lsusb
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 004: ID 050d:945a Belkin Components F7D1101 Basic Wireless USB Adapter v1000 [Realtek RTL8188SU]
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub