So i was Playing some PUBG everything was going fine. I quit and turned on some twitch, Then i unplugged my headphones got some weird error on twitch.. Then my keyboard stopped responding all together. So i figured OK i will shut it down. I hit restart.. the system just froze the monitor shut off, but all the keys were still glowing along with the lights on the back of the monitor. I shut the case, i tried pushing in the battery button that doesn't seem to work at all, unless i am hitting the wrong pinhole button. So i took off the back plate, i remember reading somewhere that would power it down.. Is this a common problem?