I bought a 2003, 20" Apple Cinema screen secondhand recently and set it up with my G5. It worked perfectly and looked sublime until I put it to sleep and awoke it to find that everything had a green hue and nothing I could do with display set up or colorsync would change things. Does this mean that the display is damaged/dying or does anyone know of a fix? Putting back my old Samsung Syncmaster screen resulted in service as usual so it's not the graphics card.