[Ubuntu]Problema Intel(R) PRO/Wireless 3945ABG

[Daewoo]

Ola a todos,

o meu problema eh este: Possuo um Dell com Ubuntu 8.04 - the Hardy Heron instalado, dpois de uma das atualizacoes semanais minha conexao wireless desapareceu. Eu procurei por uma solucao nos foruns e achei um post dizendo q eu deveria instalar o pacote compat-wireless-old-2009-05-21.tar.bz2 do site http://wireless.kernel.org/download/compat-wireless-2.6 . Eu fiz issu e o icone wireless voltou a aparecer so q quando eu tento selecionar a conexão desejada clicando em 'network name', deveria aparecer uma lista de opções de networks das imediações, porém não aparece nenhuma. Quando eu digito
sudo lshw -C network

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  *-network DISABLED     
       description: Wireless interface
       product: PRO/Wireless 3945ABG Network Connection
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:0c:00.0
       logical name: wmaster0
       version: 02
       serial: 00:1f:3c:59:5b:1c
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress cap_list logical ethernet physical wireless
       configuration: broadcast=yes driver=iwl3945 latency=0 module=iwl3945 multicast=yes wireless=IEEE 802.11abg
  *-network
       description: Ethernet interface
       product: NetLink BCM5906M Fast Ethernet PCI Express
       vendor: Broadcom Corporation
       physical id: 0
       bus info: pci@0000:09:00.0
       logical name: eth0
       version: 02
       serial: 00:1e:c9:05:fd:11
       capacity: 100MB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.86 latency=0 link=no module=tg3 multicast=yes port=twisted pair


Vou colocar algumas saidas aqui q possam ser necessarias:

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dmesg | grep iwl
[   18.253551] iwl3945: Intel(R) PRO/Wireless 3945ABG/BG Network Connection driver for Linux, 1.2.26ks
[   18.253556] iwl3945: Copyright(c) 2003-2008 Intel Corporation
[   18.253766] iwl3945: Detected Intel Wireless WiFi Link 3945ABG
[   18.317551] iwl3945: Tunable channels: 13 802.11bg, 23 802.11a channels
[   18.334057] phy0: Selected rate control algorithm 'iwl-3945-rs'
[   19.424608] iwl3945: Radio disabled by HW RF Kill switch
[   19.700013] iwl3945: Radio disabled by HW RF Kill switch
[   19.700655] iwl3945: Radio  disabled by HW RF Kill switch
[   24.892875] iwl3945: Radio disabled by HW RF Kill switch
[   30.918772] iwl3945: Radio disabled by HW RF Kill switch

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uname -a
Linux neco 2.6.24-24-generic #1 SMP Wed Apr 15 15:54:25 UTC 2009 i686 GNU/Linux


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ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1e:c9:05:fd:11
          inet addr:139.166.246.67  Bcast:139.166.246.255  Mask:255.255.255.0
          inet6 addr: fe80::21e:c9ff:fe05:fd11/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:262865 errors:0 dropped:0 overruns:0 frame:0
          TX packets:194801 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:294345104 (280.7 MB)  TX bytes:33034566 (31.5 MB)

          Interrupt:17

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:6264 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6264 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:233106 (227.6 KB)  TX bytes:233106 (227.6 KB)


Agradeco desde ja a ajuda de todos.