Description of problem: On my second screen (:0.1) panels that are placed on bottom and right positions are invisible, the desktop is shown instead. The space it's supposed to occupy is taken from existing full-screen windows though. So, if you have a full-screen window and enable a bottom or right positioned panel, the full-screen window is shrunk by the size of the panel, the desktop is shown at that position, but there is no panel to be seen. Richt-clicking on this bar gives a nautilus context-menu. Version-Release number of selected component (if applicable): gnome-panel-2.18.0-9.fc7 How reproducible: Easiest way: enable dual-monitor operation with dual-screen (i.e. no merged framebuffer), create a panel on the top (otherwise you'll lose it immediately), click properties and adjust it to be a bottom or right panel, and watch it disappear. Then of course revert it before OKing it, otherwise your panel will be lost (but stil float around in the settings :-(). Actual results: A strip of desktop where I expect a panel. Expected results: A panel. Additional info: There is a related problem, although it probably isn't caused by panel, I don't know what application. When the panel is stopped (by removing it from the session, that seems to be the only way), and a window is maximised on the second screen (:0.1), the window's size extends way beyond the actual screen size. This is not an X problem because xdpyinfo reports the proper screen size. Also when the panel is started, the problem goes away. Weird. I will report this as a metacity bug as well.