I just got my 2011 i5/11" macbook air a couple days ago and everything on it seems to be great. I haven't tried any games on it but there is one thing I have noticed lately. When watching videos on youtube in 720p and 1080p in full screen I see a sporadic white line pop up on the right edge of the screen going from the top of the screen to the bottom. The line is very thin and it sometimes appears segmented but it isn't always visible. It just randomly shows up for like a half a second and goes away. Has anyone else experienced this issue?