KDesktop Artifacts

[Mark Bidewell]

I am useing KDE 3.5.6,  When I dismiss a panel or desktop menu without
selecting and option I often get a black hole in my background, this hole
can be removed by moving a window or icon over the sport or refreshing the
desktop, GNOME and XFCE not not exhibit this behavior, and I have not been
able to reproduce it using any other distros live cds.

Does anyone have any ideas what could be the culprit?
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