U2719DX, shadow along bottom edge

Okay, so just got my U2719DX from Amazon, and I am not very happy. First of all there seems to either a cluster of dead pixels or a piece of dirt behind the screen in the lower right corner. So I was thinking of exchanging it for another one that probably doesn't have this issue. But what got me concerned is that the bottom of the monitor has a noticeably shadow creep, where it looks like there is a shadow creeping into the image from the edge. It's hard to capture in a photo, but you can see a little of this in the attached imaged, where it's noticeably darker at the bottom edge. Are they all like that or did I get a lemon? I am concerned they are all like that. It's very distracting to me, because my taskbar is on the side. I am sure people that have their taskbar at the bottom probably would hardly ever notice it.