I've had my Haswell build since last June and in that time I've upgraded from Windows 8 Pro to Windows 8.1 Pro (64-bit with Media Center). However, I've noticed that my PC seems to annoyingly restart when I've actually chosen the Shutdown option. I known I have selected the correct option because it says "Shutting down" in big white letters in the middle of a blue screen not "Restarting". Anyone else having this problem? It's irritating because I shut my PC down when I go to work and often it starts up again to the login screen and then I have to shut it down again. Could it be an issue with the motherboard?