Oscillating zoom: This happens when you are far enough over to the right side of the screen and the abstract is long enough that it will go past the bottom of the screen - this causes it to shift the zoom size, which then causes the do to move, so you aren't showing the abstract, which means you don't need to change the zoom so it shifts back.
On a large screen, a left-most dot can generate text almost a foot wide and very hard to read because it is so wide.
Auto detect the limits of the axes (last update put things below the bottom of the axes)
Things to fix: