I have a mac min with a Samsung Syncmaster P12070 monitor connected to it. I wanted to hood up 2 monitors to the mac mini and read you can only do this with an HDMI capable monitor. So I purchased an LG 24EN43 monitor and hooked it up with an HDMI cable. This worked perfect except that the additional HDMI monitor was the extended desktop. I wanted my old Samsung monitor to be the extended desktop so I turned off the computer and only had the LG connected. It came up fine and then I plugged in the Samsung. Things seemed to work for a bit but the picture on the LG was kind of jittery. Then all of a sudden it said that it says that it has no signal and is going into power saving mode. So I turned off the mac mini again and only had the HDMI LG connected. Now I can't get it to even work. I get a pink like screen that I can see the apple logo on boot up but after that all I get is the message that it has no signal. Weird thing is when I unplug the monitor from the mac it gives a different type message that says it has no signal connect the cable. What I want is that the LG is my primary and the Samsung is the extended display where I can pull other windows over to. Is this possible?