There are several ways to solve this problem and I'll show you two ways!
All this ways requires that you have a ethernet connection ( a wired connection ).
BEFORE YOU TRY THESE, MAKE SURE YOU'VE RAN APT-GET INSTALL UPGRADE & APT-GET INSTALL UPDATE BEFORE IF YOU ARE RUNNING BACKTRACK 4 FINAL - IT'S ALWAYS GOOD TO UPGRADE.
This is the most simple one.
Log into BackTrack as root and run these commands:
/etc/init.d/networking startThen follow the instructions on the program that starts.
apt-get install jockey-gtk
Downloading drivers manually
Go to: Broadcom.com - 802.11 Linux STA driver
And download the tarball for your system (32 or 64).
Run the following in the terminal:
/etc/init.d/networking startNow let's check if you have any conflicting drivers (you shouldn't, they doesn't come with BT.)
tar xzf nameoffile.tar.gz
lsmod | grep "b43\|ssb\|wl"
If any of these are installed, remove them:
Then let's insmod the driver:
modprobe lib80211Congratulations! You are up and running!
Note: You maybe have to start network through the KDE "start menu" before you get the WICD manager up, then you should see networks.
If you can't connect to a wireless network, try changing WPA supplicant driver.