I bought Acer ET430K monitor at 2018-06-12.
I am programmer and I use Visual Studio in Dark mode.
In the dark space in Visual Studio I seen the icons from desktop and the wallpaper.
When I opening file browser, spreadsheets or web browser, I seen a window rearrange edge to edge.
I changed the display card, cables 3 x DP, 2 x HDMI 2.0 and last checked with other computer but I have same problem.
Searching in the internet I find the a customer review on amazon of Prof. Kittenson at 2017-07-29.
My system config: CPU: i8770K, MB: Asus ROG Strix Z370, RAM: 32G, SSD: SAMSUNG 960 EVO 500GB M.2 PCIe, VGA: Asus GF-GTX1050ti, PS: Corsair RMX Series RM650X 650W
Does anyone have any idea how to solve this issue?