My MacBook Pro (2006, model A1150) fails to boot beyond the white screen AFTER the screen with the Apple logo and spinner.
I have tried:
Resetting PRAM (doesn't work)
Resetting SMC (how can you tell?)
Apple Hardware Test (says no problems)
Swapping RAM chips with a similar machine (no effect)
Re-installing OS 10.6.3. (Seems to be O.K.)
Booting in "Verbose Mode" (Stops at
"Unable to read Block 16 17 18 19" etc)
Booting in "Target mode" (this works!)
Booting in "Safe mode" (this works too!)
What is preventing it from booting, and how can I resolve this matter?