BUT, I'm basing that on the fact that the brightness of my screen flickers, which is apparently caused by some class of dodgy inverter, but the image on the screen doesn't flicker when this happens.
ADDED BIT:
My boyfriend has just said that there would be text etc on the screen as per usual, but it would be dark (too dark to see) - if you shone a very bright light on it you would be able to see the stuff on the screen.
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