Hello all. I have just signed-up in this forum. I am in need of your help. I have a Nikon D7000 and I have been using it since 2012. Everything was working fine. Suddenly yesterday, I saw that the rear LCD is showing some dark shadows. All four corners have this dark shadow but the shadows on upper and lower corners on the right side of the LCD is bigger. First I thought it's a lens issue then I changed lens and its the same. Live view is pretty alarming with these corner patches. Although my images are not effected by this dark shadow, I am in need of your help or suggestions on what could be the reason behind this problem and is there any way to solve this. If anyone faced the same issue earlier, it will be really helpful if you share your experience. Sorry for my long words. Thanks a lot for your time.