I'm using my 2011 Mini for both general use and as a HTPC. I'm have dual monitors connected, a HP 24" as the primary connected via TB to DVI, and my TV via HDMI running Plex full screen as the second display. All has worked well for 2 years with no issues. I just got a new TV, a Vizio M series. My problem is that when the TV is off, I keep getting a freeze then a blue screen every couple of minutes. I think it is trying to detect the HDMI display on the TV. My previous TV, also a Vizio, did this freeze and blue screen only when I would switch to that HDMI input which is what makes me think it is a handshake issue. Now is this an issue with the TV even when off trying to detect any input being sent to it to automatically turn itself on? Is it the Mac trying to detect to see if the TV is still connected? I've tried restarting the Mac with the TV both on or off and no change. If I leave the TV on all works fine. Any suggestions? Needless to say this is driving me crazy.