Answer to: Display randomly inverted, inverter problem?There is actually a feature built into OSX to invert the display colors. The default key short-cut is CTRL + ALT OPTION + COMMAND + 8 While this isn't a solution it may make the laptop easier to use. I'm with oldturkey03, that it is more likely to be a damaged cable. To isolate your problem, I would recommend hooking it to an external display and see if it will discolor. If it does, it is a logic board related problem. If not, then you've narrowed it down to an internal display issue. My 2007 MBP display turned into a strobe light, when connected to another display it too flicked and flashed just as the internal display had, indicating GPU failure over display failure.