I purchased an i7 iMac yesterday and installed my previous OS from my Macbook using external HD and the Super Duper program (the OS is 10.6.2). I connected my iPhone and it 'saw' it and allowed a sync but only the first time, now when I connect the phone it does not appear in iTunes. It does charge when plugged into the iMac, and I've checked it by connecting to the laptop so it still works. I was wondering if it was something to do with permissions, some of my songs will now not play on the iMac as it says they have been activated on too many computers (I only have two, but it may be because I got through three MacBooks before I got a good one). Does anyone have any ideas before I call Apple and they advise to reinstall the entire OS??