I woke my computer (1 Ghz G4, 1.25 GB RAM, 10.4.9) from sleep and suddenly everything froze except for the mouse cursor. No problem, I just held the power button down until it shut down and restarted. Instead of restarting I got the flashing question mark. So I booted from the Tiger disc to try and run Disk Utility/reinstall the OS. The internal hard drive does not appear in Disk Utility or in the installation window! Does this mean my hard drive just up and died? Thanks for any help.