Recently installed mountain lion on my macbook ( old version 2006-2010) after install it restarts and brings me to just a grey blank screen. Laptop screen is broke and I've always used a mac to TV adapter. Screen shows up grey. Tried restarting and safe boot but always comes back to that grey screen. Laptop sounds as if it's starting up but once up and running goes straight to grey screen.
Posted on May 3, 2016 12:16 PM