Hello there.. Followed some of the forum threads on how to install Windows 8.1 on nMP. The install went fine without any issues, and I've used this setup for last a few weeks. Today, I just tried to reboot into OSX, but it keeps freezing or reboot constantly. I tried resetting the PRAM using ALT+Option + P + R, or even try to go to Repair Volume, but it keeps freezing and restarting it by itself. Did anyone experience the same issue? If so, do you have any solution to this?