hey everyone, i'm selling my macbook pro in order to buy the new one. so of course i erased the hard drive, 7 pass. and when i tried to install OS X from the restore discs, it came up with an error said it was missing some media or soemthing. So i was going to just simply try again, but now I can't get to the boot screen. I get the folder with the ? on it and I can't seem to restart and boot from that restore disc. any help would be greatly appreciated.