The support was thus overwhelmed, thus the monitor went back.
The imaging was only satisfactory, the color distortion and the banding of PVA panels, I could not believe my old Eizo with PVA had the better picture quality easily and is already 7 years old.
Update 01/16/2015: the Acer B326HULymiidphz also has the Flicker Flash Problem (Info: Samsung S32D850T has the same 32 "panel)