Version: (using KDE 4.2.0) OS: Linux Installed from: Ubuntu Packages Unfortunately, I haven't found a way to reproduce this bug. I cannot even take a screen shot due to another bug (print screen key not working), and every mouse click causes systray to repaint itself and the corruption disappears.
Created attachment 31649 [details] Screenshot of the systray corruption I've managed to take a screenshot
I can confirm this bug. Testcase: Remove the system tray applet from the current panel. Place the system tray applet in a separate panel. Set this panel to autohide. After the panel has hidden itself, mouse-over it again to show the system tray.
*** This bug has been marked as a duplicate of bug 158094 ***