Ndiswrapper e bcm43xx

[SickHate]

oi ppl tou á mais de dias pa por o portatil da minha namorada a rodar com ubuntu com net wireless....já tentei muits tutos e nenhum deu certo..ker pelo ndiswrapper ker pelo firmware sempre k faço um restar da rede tenh sempre esse resultado:

calina@Capricornio:~/Desktop/802BG$ sudo dhclient3 eth1
Internet Systems Consortium DHCP Client V3.0.3
Copyright 2004-2005 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

Listening on LPF/eth1/00:14:a4:53:ee:3d
Sending on   LPF/eth1/00:14:a4:53:ee:3d
Sending on   Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 14
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 18
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
calina@Capricornio:~/Desktop/802BG$ sudo dhclient3 eth1
Internet Systems Consortium DHCP Client V3.0.3
Copyright 2004-2005 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

Listening on LPF/eth1/00:14:a4:53:ee:3d
Sending on   LPF/eth1/00:14:a4:53:ee:3d
Sending on   Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 17
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 16
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 2
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
calina@Capricornio:~/Desktop/802BG$ blacklist bcm43xx
bash: blacklist: comando não encontrado
calina@Capricornio:~/Desktop/802BG$ sudo modprobe bcm43xx
calina@Capricornio:~/Desktop/802BG$

Não sei mais k fazer...o portatil é um açer aspire 3003...usa drivers broadcom..please ppl alguem ajude!