Hi folks, any help/advice much appreciated, I dropped my Blackbook last night as I was leaving the office. It fell about 3 feet and landed on its corner. There was no external damage, and the machine was asleep at the time. I immediately opened the lid and it woke up up normally. I thought all was OK. A couple of hours later back at home I needed to use the machine, and again it woke from sleep quite happily. I used it for a few minutes including copying a spreadhseet from my time machine disk and making a few changes to it. Then the machine locked up completely - just a spinning beach ball but nothing was working, and eventually I just had to power down. Now it won't reboot, getting only as far as the grey apple screen and hanging with the fans running at full speed. So far I have done the following.... -Reset the PRAM and SMC -Tried to boot in safe mode, it won't - Booted from a Leopard install disk. Tried to run disk utility, which recognises a disk is there, but all the options to check/repair the disk are greyed out so I can't do anything - Ran Apple hardware test, it came up with an error code which is related to the hard disk (sorry I don't have the code with me), but included the characters SATA so I am assuming that's what it is My hunch is that the shock of the impact has done something unspeakable to the hard drive - anyone got any advice/suggestions? The machine is a Santa Rosa Blackbook with a stock 160Gb disk and running 10.5.6 by the way. Thanks in advance..... Dom.