Answer to: My MacBook Pro turns on, but has a black screen.EASIEST WAY TO FIX!!!! The screen isn't black. Its just too dark to see. So grab a flashlight and aim it though the lid where the apple logo is. It will light up the LCD screen enough to see if its on. Click you user, password and VUALA. welcome back. And maybe next time don't freak out when your Mac is going slow and stop mashing enter...you shut your Mac down by doing so. YOUR WELCOMES!