Just started happening today, but 3 times already, when I wake the phone, the screen has either a blue, or green hue to it. It carries over to the any app I open, and stays until I turn the screen of and turn it back on. It is not subtle, it takes over the entire screen and really takes away from my impressions on the phone. I love the camera, battery life, and overall feel of the phone. My only complaints are the fact it is somewhat underpowered, and slows down in almost any game I play. The camera can take a while to be ready for another pic. The brown and gold color scheme is atrocious. And now this screen problem. Unfortunately, I think it is going back, and I will be going back to my X, until the SGS2 is released.