[ubuntu] problem with b43 (broadcom bcm4312) on lucid

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http://ubuntuforums.org – hi, i just installed ubuntu lucid on my new laptop (hp pavillion dv6) and I am having troubles with wireless. I installed b43 drivers and at first I could connect to networks.. but when I upgraded to 2.6.33-23 kernel (from 2.6.33-21) i cannot connect to networks! I can scan them but I cannot connect to them. I think I should mention that I am trying to connect to WEP networks, I havent tried wpa/open. Please don't tell me I should try to connect to open/wpa wlans because I am not in position to do that right now. Btw, when I boot old kernel I cannot scan networks. When I tried sca (HowTos)