I just brought home a new Surface 3. I sold my Surface Pro 3 about a month ago and replaced it with an iPad Air 2. Big mistake. So I'm back to the surface, and actually prefer the size of the Surface 3 to its big brother. The screen uniformity of this new Surface 3 though, seems fairly bad. See the picture below. It is brighter in the middle of the screen than the edges, and quite a bit dimmer on the right edge. Is this normal or should I return and exchange the unit? Thanks!