I also have the A750D. I've received and sent back three of these asus monitors. I mostly play world of warcraft or rpg games. In DA3 and WoW, the screen door effect was just constant. For me it was the green colors that it was most evident. I really didn't mind the matte finish or color. It was really pretty good. I had no backlight bleed or dead pixels on all of them either. But the screen door effect, no matter how long I played on it, I was never able to stop seeing it. There was no way I could settle and try to get used to the screen door effect while paying that much for a monitor. It makes me very sad because the desktop/browsing experience was amazing at 1440.