Enable Internet In BackTrack 4

Two easiest method present to enable internet in backtrack4.
Either you do this through terminal or manual or either you do this by using Wicd network manager.   

• Open terminal and type this 

/usr/bin/start-network

• Now open Wicd network manager and you will see a list of connections availabe, wireless as well as wired.

•  Setup your connection and you are done.