Here’s how to get rid of that annoying “Busy Cursor” bouncing icon next to the mouse pointer in Kubuntu.
(1) Press Alt+F2 to bring up the Run Command dialog box.
(2) Type `kcontrol` and click Run.
(3) Select “Appearance & Themes” from the left sidebar menu.
(4) Select “Launch Feedback” from the sub-menu.
(5) In the “Busy Cursor” box, select “No Busy Cursor” from the drop down menu.
That’s it! Banished for good!