Recently my family friend gave me his old black macbook for my birthday. It wasnt bad, it was just fine, only it ALWAYS has to be charging and plugged into the wall otherwise it shuts off. I dont care much about that, its basically a desktop for me. I had it for a day and a half when a friend recommended i do a software update. I didnt download anything stupid, i just updated itunes, quicktime, and 2 other things. at the end of the update it needed to restart so i did. When the computer was starting up again, it wouldnt move past the grey screen with the apple sign and that little wheel as if it was loading. i thought maybe thats what macs do after an update, so i left it for a few minutes. after like 20 minutes of being away i came back and the computer was still at that screen. i shut it off for the night and the next morning i had the same problem. I cant get to the homescreen or anything past the grey screen right when you start your computer up. does anyone know what the problem is/what the fee to repair it might be?