I have a Pioneer 533HD that has always had a slight green tint. Over the past few months the green tint has gone from slight to driving me crazy. Every nighttime or dark scene has slowly devolved into black and green. But starting this week, whenever there is black or white text on a broadcast (HDTV or SDTV), the print is green if the print is white, and the text has a green glow is the text is black. I've played with the settings and can't seem to make it stop. I've never had the set calibrated, but I'm wondering if this sounds like a calibration issue or if I'm in for another repair.