I dont know why nobody read the f.. manual ... guys follow the
Link: https://www.youtube.com/watch?v=WCRq2pbUr8o
There is nothing in the manual saying that AMA should be switched off for desktop usage.
I downloaded your picture, opened it with Windows picture viewer, zoomed two steps and when I move the picture with my mouse, I don't get any flashing. I tried with all AMA settings.
So maybe BenQ has changed something?