A friend of mine just got a C2D MacBook Pro two days ago and now it wont shut down. The Finder bar, dock, and wallpaper all disappear as usual, but it hangs at the blue screen with the spinning animation thingy. After about 15 seconds, the animation stops and it just stays there. I was thinking of doing a test shutdown from my protege and run the disk utility diagnostics, am I on the right track?