Hi everyone, I noticed this on my new base 13" MBP. I was playing Portal 2 on it last night and obviously the system heated up (only to about 80 C). The blacks on the screen were quite irregular with the middle being much darker than the sides. I thought at first I had a dead LED, but then after quitting the game and doing some internet searching (which cooled the laptop off), I noticed the issue was much less pronounced. The darker line also seems to occur above where the system was most heated. Is it common for this to occur? It only seems really bad when the computer heats up... but the computer heats up for videos and netflix so it may be a bit annoying at times when I'm watching video. Any info/corroboration would be great, thanks!