I've got it all set up and each can see each others files. My desktop PC connects to the internet through a USB modem, but, whatever I try, I can't connect to the internet from my laptop.
I've got the 'let other computer connect to the internet via this connection' box ticked, I've tried it with my firewalls off, and I'm stuck.
It's a "Security enabled computer-to-computer network", or Peer-to-peer network to it's friends.
The laptop can connect via the desktop when I plug a crossover network cable into it, and I've had it working wirelessly before (before the laptop broke).
Google is, as normal, just trying to sell me things, so I'm close to eating the cards