Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I feel so silly. I put an edit up here after posting but shock horror I discover it didn't get saved. Doh!

I'm not used to this ipod stuff yet. It turns out the "restore" button was there but the window was too small to see it. I didn't realise that this particular mac software operated like this, I would have thought that the button would move as the window is resized.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.