My MBP is about 2 weeks old, and yesterday, playing video games, i noticed that sort of distortion appears in the lower part of the screen. It mostly happens when the picture changes fast. Looks like a line which runs through the lower part of the screen, but it does not change the color - only geometry. The same happens when i scroll the text fast. I checked the temps of the GPU - they dont go over 75C, and about 60C in normal mode. So i wonder what can it be.