A few days ago (possibly related to the upgrade to chimaera) when I log
into lxqt a white band has appeared at the top of the screen.
It looks exactly like the band at the bottom, except the one at the botom
carries icons and stuff, and the one on top carries nothing.

How do I go about getting rid of this superfluous bar? I cannot place any
part of a window there, and I lavve limited vertical space on the screen.

-- hendrik