Laptop wireless seems to have stopped working

Computer is a Toshiba Tecra S1 (Centrino) with Windows XP Pro.

Since yesterday (at least that's when I noticed), the 'Wireless Network
Connection' on the 'Network Connections' screen has a red cross through it.
Right-clicking on it I go to 'View Available Wireless Networks' and the
whole window that usually has the available wireless networks in completely
greyed out except for the cancel button.

Any ideas how to fix? (assuming it's not the wireless hardware - which I
believe as it's a Centrino is all part of the Intel chipset)

I have had problems in the past deleting a network bridge - nothing at all
would delete it - in the end I had to do a system restore.

The computer recently suffered a fatal crash a few weeks ago, Windows
refused to boot due to a corrupt system file
'C:\Windows\system32\config\system'. The computer was got up and running
again by 'manually' (from DOS) by renaming a file from a system restore
point 2 weeks previous.

Computer works fine - but as I've just found out - the wireless network
ain't working

"Johnny" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Computer is a Toshiba Tecra S1 (Centrino) with Windows XP Pro.
>
> Since yesterday (at least that's when I noticed), the 'Wireless Network
> Connection' on the 'Network Connections' screen has a red cross through
it.
> Right-clicking on it I go to 'View Available Wireless Networks' and the
> whole window that usually has the available wireless networks in
completely
> greyed out except for the cancel button.
>
> Any ideas how to fix? (assuming it's not the wireless hardware - which I
> believe as it's a Centrino is all part of the Intel chipset)
>
> I have had problems in the past deleting a network bridge - nothing at all
> would delete it - in the end I had to do a system restore.
>
> The computer recently suffered a fatal crash a few weeks ago, Windows
> refused to boot due to a corrupt system file
> 'C:\Windows\system32\config\system'. The computer was got up and running
> again by 'manually' (from DOS) by renaming a file from a system restore
> point 2 weeks previous.
>
> Computer works fine - but as I've just found out - the wireless network
> ain't working
>

Bit more info, I have a Wireless (& wired) router with built in ADSL modem.
Although I only the laptop has wireless capabilities I'm sure it's not the
router at fault as I've already stated the laptop refuses to even look for
available wireless networks.

Going into the device manager, Windows says that the device is working
properly - even though it clearly isn't.

The laptop also has a wired connection to the network, it's set to
automatically switch to the wireless connection when the network cable is
unplugged - the wired connection works fine.

"Johnny" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Computer is a Toshiba Tecra S1 (Centrino) with Windows XP Pro.
>
> Since yesterday (at least that's when I noticed), the 'Wireless Network
> Connection' on the 'Network Connections' screen has a red cross through
it.
> Right-clicking on it I go to 'View Available Wireless Networks' and the
> whole window that usually has the available wireless networks in
completely
> greyed out except for the cancel button.
>
> Any ideas how to fix? (assuming it's not the wireless hardware - which I
> believe as it's a Centrino is all part of the Intel chipset)
>
> I have had problems in the past deleting a network bridge - nothing at all
> would delete it - in the end I had to do a system restore.
>
> The computer recently suffered a fatal crash a few weeks ago, Windows
> refused to boot due to a corrupt system file
> 'C:\Windows\system32\config\system'. The computer was got up and running
> again by 'manually' (from DOS) by renaming a file from a system restore
> point 2 weeks previous.
>
> Computer works fine - but as I've just found out - the wireless network
> ain't working
>
>

Problem solved.

Incase anyone else has this trouble, here's what was done...

Uninstall the wireless network driver.
Reboot Windows.
Allow Windows to detect the 'new' hardware and install a driver.
All fine & dandy now.

Odd that I did try installing a driver over the top of the existing one with
no luck, and I couldn't roll back a version of the driver either.