I bought the Dell U2417H IPS computer monitor. After powering it on and going to a website with a white/light background, I immediately noticed that there was a small gray haze/shadow running along the right and left edges of the screen from the top all the way to the bottom of the screen. It's about 1/2 cm thick. However, if I move myself to either edge of the screen, the gray haze/shadow goes away but the opposite edge retains the shadow and it gets more intense the more I move away from the opposite edge, although it maintains its original thickness. Also, I did not observe any haze on the top or bottom edges of the screen, only at the left and right edges. If i move myself away from monitor the haze/shadow goes away (i see sharp edges). What could be causing this? Is this normal for IPS monitors?