Yesterday, I tryed to shut it down, and it did not. I ended up having to hold the power key for awhile. Then early today, the macbook was sleeping. As I re opened it, the screen just stayed Black.... This is the 3rd time I experience that. I am a 1st time Mac User btw, so I am not sure if there as common problems. Any suggestions on what I should do? The mac I use is the new 2.4Ghz, 250 HD, 2G ram from apple. I swapped the 2G and installed a 4G. The only recent "project" I did with my Laptop was installing Win. Xp using bootcamp. Thankyou for the Help!!