Okay, here's the situation.
I want to have 4 monitors connected to 1 computer. One will be facing me at all time. The one facing me should always stay on so I can see everything on it. The other 3 are placed in a room facing the test subject. One on his left, one infront of him and one on his right. I'd like to be able to make it so that only one monitor in the room comes on at a time. So, if I want the subject to watch the monitor on the right, I'd like to turn that one on with just a switch. If I want the subject to turn left, I'd switch that one on and the other one should switch off.
I've tried using a monitor switch box which diverts the signal to the monitor I want; however, when the other monitors don't get a signal, their "no signal detected" sign pops up and that's distracting to the subject. I need a way to keep that from coming on.
What's a good solution?