Hi,
 
> I have installed a small ethernet network at home.  One of the
> sockets is in my son's bedroom.  He has now moved his computer to his
> bedroom, but when he plugs the network cable in, Windows says that a
> network cable is unplugged.

I have a wireless network (as well as a physical one) at home. Unfortunately
we have two XP laptops which need to use this. Frequently, they will claim
that they are not connected to the network (when, in fact, they are, and are
usable), or that passwords haven't been entered (when they have). I often
see a "not connected" message, with a "disconnect" button enabled. So far, I
have not seen a reproducible pattern to this behaviour.

Needless to say, Macs just need a password the first time, and then connect
forever.

Bah!

A.