Need help with Single User Mode

After booting into Single User mode, you'll need to run a file system check and then mount the file system. The instructions for doing these steps should be right on the screen in front of you. Once the file system is mounted, you should enter

Code:

ls -tl /System/Library/Displays/Overrides/

(The first character is a lowercase L, as is the character before the first /)

You should see a list of files, along with their modification dates. The most recently modified should be first. Instead of deleting that file, it's probably better to just move it out of that directory. That way you can recover it if you need to or if you made a mistake. To move it out, enter

Code:

mv name-of-file  /

(name-of-file should be the exact file name---case matters)

Then enter

Code:

reboot

to exit Single User mode and boot OS X.