My Mac Book decided to pull a Humpty Dumpty, and landed on its spine (see below for details). I tried recovering files, but was unsuccessful, as described here: http://forums.macrumors.com/showthread.php?p=14386344#post14386344 So I used the OSX DVD to open Disk Utility and erase the drive. Then I started reinstalling OSX. It took several hours, but seemed to be making progress. Then it went black, made the startup chime, and displayed a . Ten minutes later, it did that again. Then it did it again. After the 8th repetition of this, I turned it off. What now? Should I go buy a new HD and install it? Or is there something else to try first? Thanks! Background Info: My MacBook crashed- literally- onto the floor. I picked it up and opened it and it made a lot of bad sounding mechanical noises. I was able to drag windows around and minimize them, but it was very sluggish. When I clicked on an image on the desktop it opened up, but only after several minutes. I restarted, but it just showed a logo and a spinning wheel for an hour. I took it to the Genius Bar, and they said I should try using FireWire Target Mode to save files and then do a full erase of the hard drive, and reinstall everything. I have a Time Machine backup, but it's not recent, and I'd like to save pictures that aren't on it.