[kubuntu 5.1 + Wifi] - Pb IPW2200

Bonjour à tous,

Voila ma question :

J'ai une carte intel 2200 BG et ai compilé à peu pres toutes les
versions de ieee80211/ipw2200 avec le firmware 2.4 en vain.

voici les traces invariables que j'obtiens :

#dmesg|grep ieee80211
[4294697.970000] ieee80211_crypt: registered algorithm 'NULL'
[4294698.053000] ieee80211: 802.11 data/management/control stack, 1.1.8
[4294698.053000] ieee80211: Copyright (C) 2004-2005 Intel Corporation
<jketreno@linux.intel.com>

#dmesg|grep ipw2200
[4294698.100000] ipw2200: Intel(R) PRO/Wireless 2200/2915 Network
Driver, 1.0.10
[4294698.100000] ipw2200: Copyright(c) 2003-2005 Intel Corporation
[4294698.104000] ipw2200: Detected Intel PRO/Wireless 2200BG Network
Connection
[4294698.606000] ipw2200: Radio Frequency Kill Switch is On:
[4294698.606000] Kill switch must be turned off for wireless networking
to work.

d'accord alors fn+F2 pr activer le WiFi :
#dmesg|tail
[4295606.406000] atkbd.c: Unknown key pressed (translated set 2, code
0x88 on isa0060/serio0).
[4295606.406000] atkbd.c: Use 'setkeycodes e008 <keycode>' to make it known.

un ifup eth1 avec le fichier interface suivant :
iface eth1 inet static
wireless-mode Managed
wireless-essid home
wireless-key **************************
address 192.168.0.14
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
metric 20
gateway 192.168.0.254

Kwifimanager passe au "vert" mais :
#dmesg | grep ipw2200
[4295799.323000] ipw2200: Firmware error detected. Restarting.
[4295799.323000] ipw2200: Sysfs 'error' log captured.
[4295809.349000] ipw2200: Firmware error detected. Restarting.
[4295809.349000] ipw2200: Sysfs 'error' log already exists.
[4295819.407000] ipw2200: Firmware error detected. Restarting.
[4295819.407000] ipw2200: Sysfs 'error' log already exists.
[4295829.336000] ipw2200: Firmware error detected. Restarting.
[4295829.336000] ipw2200: Sysfs 'error' log already exists.
[4295839.362000] ipw2200: Firmware error detected. Restarting.
[4295839.362000] ipw2200: Sysfs 'error' log already exists.
[4295849.387000] ipw2200: Firmware error detected. Restarting.
[4295849.387000] ipw2200: Sysfs 'error' log already exists.
[4295859.444000] ipw2200: Firmware error detected. Restarting.
[4295859.444000] ipw2200: Sysfs 'error' log already exists.

Voila, quelqu'un peut il m'aider ?
D'avance, merci.