I have been on my SP3 i5 all morning doing work and paying bills. I turn around to take a call, and when I turn back around a minute later, my SP3 screen is black. It was shut off. I was not doing anything that would put stress on it, and it wasn't hot when I felt the back. I was just using Google Chrome, that's it. It was plugged in. I tried everything to get it to turn back on, even using the volume button with the power button. I few minutes later, it finally powered back on, and I'm using it right now. I just got a big update, and this happened right after that. I'm not saying the update caused this, but it is weird. I can't explain this as it has never happened before. Any suggestions?