2534 Views 1 Reply Latest reply: Sep 9, 2012 1:56 PM by RRFS
That is something I've not yet seen. Two things to try. First do a
- Shut down the computer.
- Locate the following keys on the keyboard: Command, Option, P, and R. You will need to hold these keys down simultaneously in step 4.
- Turn on the computer.
- Press and hold the Command-Option-P-R keys. You must press this key combination before the gray screen appears.
- Hold the keys down until the computer restarts and you hear the startup sound for the second time.
- Release the keys.
If that doesn't cure it startup in: