I have 2 questions. I have a Mac Book Pro 15" 2gb 120 Hard Drive. 1. When I close my laptop and it goes to sleep, sometimes it won't turn the screen back on, I can hear sounds, the internet connects and goes on iChat but my screen is black and I must shutdown it down and turn it back on. How can I fix this? 2. I am missing around 20gb on my hard drive, when I got my MBP it came with Tiger installed and then I just installed Leopard. Did it just install over it? If so how do I fix that? Thanks!