I've been a windows user for the past 10 years and today at 4.00pm I bought my first mac. I love it the 24inch model. Now I have some questions: 1. How can I tell or test for dead pixels in the screen 2. I have iTunes music on my windows pc so how can I transfer them? If I have a different email for iTunes on my mac will it work with the Windows iTunes music under a different email?