Hello, I an new to MacRumors but have registered as I found I was beginning to get somewhere through looking at an earlier thread. I have two MacBooks: Black (older) - OS 10.6.8 2.4 GHz Intel Core Duo White (newer) - OS 10.6.8 2 GHz Intel Core Duo The Black MacBook is used by my wife and children (10,8). I was trying to connect this MacBook to a new HP wireless printer when I found that System Preferences had become corrupted. I have reinstalled the OS from my Snow Leopard disc. I now have System Preferences but have I lost iPhoto. I have the grey discs from my newer White MacBook. I have tried reinstalling but the Back MacBook does not recognise the discs from the white MacBook. I do not have the grey discs for the Black MacBook as the OS and applications were factory installed (I believe) - there was a former owner. Can anyone suggest how I might reinstall iPhoto? If I go to the Apple Store in Oxford, will I be charged an arm and a leg by them for reinstalling iPhoto? I would value any help and advice. Thank you.