I had to return my first iMac due to the fact that the black border surrounding the screen (not the exterior black bezel, but the black border behind the glass -- the thin strip of black between the top of the menu bar and the beginning of the bezel) was uneven and a few other blemishes and oddities on the screen (strange areas that seemed to glisten as if due to moisture from the inside of the screen). Now I have my replacement unit. Unfortunately, I have all new problems to deal with. Near the right side of the screen are two blue spots. I can't see them when I'm browsing white or colourful images, but they really stand out when anything black comes on screen. The company logos before video games, dimly lit scenes in movies and TV shows, etc. These all make these strange blue spots rather noticeable. They are most distinct against black backgrounds, in other words. Does anyone know what's going on here or how I might be able to fix it?