i have a late 2012 mini as my local server. Since purchasing it there has been only one persistent problem. Whenever it needs to go through a restart/reboot cycle it gets stuck and needs to be forced off, by holding down the power button and then restarted. Granted I do not need to do this often, mainly with OS upgrades or some driver installs for my drobo but it really bothers me. The sequence during an upgrade is fine until after initiating the restart, the screen then goes blank, the restart chime is heard and then...nothing. It just sits there with a blank screen. Power is on to all devices (including the screen), no hard disk activity, just a powered brick. If I then press and hold the power button it turns off. I then press,the power button again, it turns on and completes the install. I have tried a safe reboot (didn't reveal anything), upgraded the RAM, changed from the internal drive to boot from an external SSD. Nothing seems to make any difference. Has anyone else had this issue? Has anyone else solved this issue'? Does anyone else know what the hell is going on?