Help with View

I have the icon clicked that says As Three Panes.

In one Database it’s Vertical column on left, horizontal column on right, on top of a horizontal column on the right. (as shown in the As Three Panes icon).

One Database with the same View is three vertical columns. Is there a setting I’ve got that would it to be causing this to be one way and not another?

Edit: View>Widescreen was checked for the one with three vertical columns. Unchecking restored to the view i was looking for.