Ghosts in the machines

"It isn't working."

"Sorry, what isn't working and who am I talking to?"

"It just switched itself off!"

"Who and what?"

"The screen."

"What were you doing when it went off?"

"Nothing."

"Are the others working?"

"Yes."

"Are the others working?"

"Yes."

"Are there any loose wires at the back of the monitor?"

"No. There's one wire coming out of the back all right."

"Ah. There should be two wires."

"Well, there's something like the wire that goes into the back of the kettle hanging loose."

"That's the one."

"Doing nothing" turned out to be moving the monitor a couple of feet to one side to make room for a teddy bear.