We had one (PV1000+) where the whole screen was inverted. One of our resourceful techs figured out how to "lie" to the touch calibration and mounted it upside down so we could use it for two days like that while we awaited a spare. It looked fine except for the upside down Allen Bradley logo, but we swapped it as soon as we got a replacement delivered. Ours had gotten wet, but drying it out didn't fix it, so we sent it out for repair.