A couple of weeks ago my harddrive made this screeching noise a few times. Just sbout an hour ago, my computer froze and when I went to restart it, it showed a flashing question mark. I have done hardware test and once it get to the harddriv, it get s an error and stops testing. I have also atarted up from an os X cd and went to disk utility, but it doesnt detect a harddrive. Is there any way to get the serial number for the drive without taking it out? I know it is a pain to take out a iBook hardrive. Also, is there any way to get all my data back? Any help will be appreciated. Thanks