This problem existed since the V18 beta - where Slick auto-scrolls things all the way left, when all I did was select something.
It happens in many places.
An easy repro though is in the "Projects" tool window.
Click on a project. If you happen to click on the 2nd column in that line, Slick will shift the window to the left - not what I wanted at all.
This happens in Search Results too - I get annoyed by this most often in Search Results.
Search Results also has a tendency to auto vertical-scroll to show only the last line.
I don't have good repro steps, other than it happens to me on a regular basis.