I'm getting a disturbing amount of color banding on this thing. It's the reason I sent back S2716DG last year, and based on various reports I ordered S2719DGF thinking that issue was pretty much gone. I must have landed a borked unit because I can't even find anyone else complaining about this. Any ideas? I'm on RX Vega 56, Adrenalin 19.5.2, Windows 10 (upgraded from 1703 to 1903 and saw no difference), and the monitor is on factory settings.