Hi there - I'm new to Macs so may be a daft question. I've bought a new MacBook Pro and an Airport Express but whenever I start-up the computer or open it from sleep, a dialogue box appears saying "None of your preferred networks are available" but there, in the list it offers me, is my network. So I select it, tick "Remeber network" and join. But the same problem will happen next time I open the computer. I've been to System Preferences > Network > Advanced and there is my network listed under "Preferred Networks". I've also been to Airport Admin Utility where it downloaded some new software and restarted the Airport, but the problem is still there. So am I missing something? I'd be grateful for any help.