Ok I got it working both wirelessly through my router at home and hard wired ad hoc through a cross over cable.
I'm really nto sure what I did to get it working but I won't complain!
I will not be bringing my wireless router with me to gigs, so I will be using it hard wired.
The problem is that when I have the crossover cable plugged in, I can't use the internet, even wirelessly.
Is this normal?