My MacBook Pro won't force shutdown
I tried to switch WiFi networks on my MacBook Pro (mid 2012) and the screen froze. I tried to do a force quit of a non responding program and the beachball showed up. Still unresponsive, I closed the screen hoping that it would get better, but it didn't. I reopened the screen to see nothing but black with the beachball in the middle of it. The backlight and cursor are still responsive, but nothing else is.
MacBook Pro, OS X Yosemite (10.10.4), 8 GB 1600 MHz DDR3