I couldn't get the Software Update from Apple anymore from 10.4.2 to 10.4.3 on my PB 867. I used Drive 10 to repair it. It took 15 hours before it was finished. Now the powerbook refuse to restart. There's a signal sound for a few seconds, but the screen stay black. After a minute I get the message in 4 languages. That's all. Can Drive 10 damage the HD? Paul Moortgat