can't connect?

My laptop receives all the wireless networks but when I am trying to connect to some protected connection (with right password) it just doesn’t connect. How to fix that?

I using OpenSuse 11.3 gnome 32bit. Dell Wireless 1397 WLAN Min-Card.

Open Yast >> Software Management …(enter your pass) search by “broadcom” install

broadcom wl 
broadcom-wl-kmp-desktop

and uninstall(unmark) all others packages!