Vista not showing my wireless network

[Guest stainless]

have a Buffalo WMR-G54 router connected to my PC that acts as my

wireless network.

 

I generally use my Windows XP laptop to connect and never have any

problem seeing the network and connecting to it. In fact, I can

generally see 6 nearby networks, including my own.

 

 

My network is on Channel 13, 802.11g, Open authentication, WEP.

 

 

Recently I have bought a Windows Vista laptop for my mother, who does

not have broadband set up yet and thus her network is not ready

 

 

I decided to use it with my network to set up firewalls, etc, via the

internet.

 

 

However, Vista is not showing my network at all and I cannot connect.

In fact, it is only showing 2 of the networks I can see from my XP

laptop.

 

 

This suggests it is not an issue with the network being set to not

broadcast (I have not set this as far as I can tell anyway).

 

 

My network is the strongest signal, so I have no idea why the 2

weaker

signals are picked up and mine is not.

 

 

I did try the manual connect option, but this did not connect to

anything, even though I put in all the correct connection details.

 

 

I even set up my router to directly use the Vista laptop Mac address.

Still no success.

 

 

ANy ideas anyone?

 

 

Cheers

 

 

Mark