How do get rid of the System Monitor applet in the panel

[Dirk Eddelbuettel]

I selected the "System Monitor" applet for the panel. Now I have two empty
rectangles sitting there that don't do anything, and that don't go away. How
do I unset them? I played the active/inactive options in preferences but no
luck.  Any idea?

CCs welcome, I'm not subscribed to debian-kde.

Thanks, Dirk

-- 
Good judgement comes from experience; experience comes from bad judgement. 
                                                            -- Fred Brooks