Possible Duplicate:
LibreOffice icons missing from Unity task panel
When opening a LibreOffice document, the icon appears briefly in the application-menu bar then disappears, letting no way to retrieve the window if minimized. Alt+Tab does not show the window either. BIG problem.
Config: Ubuntu 12.04, LibreOffice 3.5.4 (Same problem with 3.5.3).
Was OK with Ubuntu 11.10
I tried to select "KDE compatible" in CompizeConfig but did not help.
