Version: (using Devel) OS: Linux Installed from: Compiled sources KDE 4.3.80 (KDE 4.4 Beta1) Taskbar shows windows that were closed (not all of windows - they appear from time to time and their icon never disappears). Right-clicking on such item shows context menu with all items greyed-out. Also after restoring session I receive some weird windows which can't be minimezed neither with minimize button nor with show desktop button. They are also shown on all dekstops and I think after closing such windows I have received some of such icons in taskbar
This issue is being tracked at bug 202199 Thanks *** This bug has been marked as a duplicate of bug 202199 ***