I've been really annoyed by Rhythmbox scrollbar behavior of late: when I click in the "trough" of the scrollbar, instead of moving the view by about a page up or down, it moves a distance corresponding to the point in the trough clicked. This is pretty bad for large text areas, such as a large music library. I complained to the Rhythmbox folks and Jonathan Matthew
replied that this is default gtk behavior. This struck me as odd since I haven't noticed it in other applications, however Jonathan was right.
Google led me to a Gentoo
site where ebichu was having the same issue, and posted the solution. I can't thank him there since I don't have a gentoo.org password, but he or she deserves thanks. The fix is to add a line to
/etc/gtk-3.0/settings.ini:
[Settings]
gtk-primary-button-warps-slider = false
So they apparently call this slider warping. Very user-hostile.