IMAC boots up to flashing question mark
SymptomThe IMAC would not comppletely boot up. It was booting up to a flashing question mark.Cause There are many different possibilities why it does this. Resolution -Boot up w/ the Mac OS startup disk (insert CD;reboot while holding "C") -Once you get to desktop run Disk First Aid on the HD. -Discover and let Disk repair the problem and then make sure the system will boot to HD. -Rebooted to verify successful boot.