Wi-Fi missing in XP...help ?

HI, yesterday i try to access to internet and set to ON
the button on my HP portable notebook Pavlion but
when i turn on the led NOT change from yellow to BLU!

And not appare in the low of the tray the antenna icon
to wireless state!

I controll and in ALL NETWORK not appare the wireless
connetion icon ! and in control pannel- device manager
NOT appare in network the WLAN BROADCOM 802.11
MINIPORT ! lost....

i see only an 1934 NET ADAPTER and a new voice that
say:

NVIDIA NFORCE NETWORKING CONTROLLER MINIPORT.

why ?

I use the programm Network Strumbler 0.4.0 and it say that
i have NOT a nettwork adapter installed !!!!! wow !

I try to restore the system to an all day, but none ! i resinstall
from secrete partiotion HP the Software HP and all the
HP wireless drivers .... but NONE !!!

if i go to this programm it HP WIRELESS ADJUST STATUS

it say:



http://i40.tinypic.com/2lvi64j.jpg


what si this Micorsoft Device manager ? and F10 ? what and
where? it force the wi-fi adapter to work or ?


now, is the internal wi-fi network fault or ONLY the software ?
but in how mode i know what is fault and dead ????

And, why in Network status NOT appar the icon of
"Connection of wireless " and in device manager in
harware microsoft of XP there is not the WLAN BROADBAND
802.11 schedule and driver all disappear !!!

is an hardware or software problem on my wireless wi-fi network ?

what is this F10 the set-up in bios of my notebook hp?
but in bios there isn't a voice that say "device" ...help me

 

Check your Bios at start up and make sure that your wireless internet is
access. If it is go to HP site and dowload your drivers and install them for
your HP Pavillion