Version:           2.2.1 (using KDE 3.1.3)
Installed from:     (3.0)
Compiler:          gcc version 2.95.4 20011002 (Debian prerelease)
OS:          Linux (i686) release 2.4.21-tc2

This is a gui inconsistency.
It stems from the change from playlist play-on-double-click to play-on-double-click.

If I want to manupulate the playlist without playin the tracks I'm touching, I need to use the right mouse button.

Now consider selecting a set of tracks and moving them to the start of the playlist.
Old version (KDE 3.0): left-click first selection - left-click last selection - left-drag group into new position.
New version (3.1.3): right-click first selection - right-click last selection - right-drag group into new position.

BUT
right-drag in the new version only makes a new group selection rather than moving the selection.

Solution: shift- and ctrl-right-click are enough to select group, so please enable drag-and-drop and turn off group selection on right-drag.

Cheers,
drushka