I upgraded to Lion on my 9 month old Macbook Pro this afternoon and I've got a load of problems. I've got the problem where moving the cursor doesnt wake the Mac which is being reported elsewhere. Screen Saver isn't activating but more crucially I can't connect to the net any more. Safari, Chrome, MSN Messenger, Mail, Tweetdeck, Software Update, pretty much every program that accesses the internet won't connect. I bought a new router today and luckily configured it before I installed Lion, and all my other devices (including the PC netbook I'm using now) connect perfectly, so I know it's not a router fault. Someone suggested setting different DNS addresses but that's not worked, anyone got any ideas?