[ubuntu-uk] Using Vinagre to connect to a Linux machine on the same local network

[Gordon Burgess-Parker]

I have two Linux machines - a Tosh Satellite using 10.04 Desktop and a Tosh Netbook using 10.04 Remix, both connected wirelessly to the router. The Satellite can see the netbook in Places-Network.
I'm trying to use Vinagre to remote desktop to my Netbook from the Satellite

In the Connect dialog, if I click on Find it doesn't find anything, if I
enter the computer name (gordon-netbook) it just tells me "connection closed"
Is there something I have to enable on the Netbook, or what? (The "Help"
is particularly UN helpful....)