Version: (using Devel) Installed from: Compiled sources I've changed the position of the plasma toolbox from the upper-right corner to the left edge, at the middle. Sometimes some text from the items (appearence settings, zoom out, etc) is visible when it should be hidden. To reproduce: - change the toolbox's position from upper-left corner to bottom of screen or left side edge; - block and unblock screen elements; That recreates the bug for me every single time. Hope it helps. (specs: KDE 4.1.85 from Kubunto experimental repos) Side note: what I really wished was for a way to not having the toolbox! :)
I've reproduced something similar: I've moved the cashew on the bottom left edge and, locking/unlocking plasma, part of the "Lock Widgets" string appears over the cashew. Look at the screenshot.
Created attachment 33106 [details] example of the cashew label bug
Still present in kde 4.3 beta 2
it was a Qt bug (child items showing when parent is hidden), it's been fixed upstream.