Depends on the set, but it sounds more like your projectors have come out of alignment. Hopefully this isn't washout due to a failing emitter or projector. I would let a certified TV tech check the set for alignment since rear screen sets are very dangerous. All three projectors have their own HV cap and flyback, which triples the chance that you will get zapped.
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Depends on the set, but it sounds more like your projectors have come out of alignment. Hopefully this isn't washout due to a failing emitter or projector. I would let a certified TV tech check the set for alignment since rear screen sets are very dangerous. All three projectors have their own HV cap and flyback, which triples the chance that you will get zapped.