Hi,
I had to relocate my PC and after reconnecting my 3 identical monitors, possibly to different ports on the 2 display cards, I re-assigned the monitors and reloaded the wallpaper.
However, only one monitor has a y-offset of zero, the others now have y-offsets of 1 and 16 respectively. Also see attached picture.
I can see the offsets in Settings but I cannot see a way of changing them.

How do I fix this problem?

Thanks!

That was not obvious to me...
I assumed that dialog was just for re-arranging the order...
I must have inadvertently dragged the "monitors" vertically when all I wanted was to swap them horizontally.

Manfred