I found this bug yesterday (up-to-date Ubuntu 10.10 32bit) while right- clicking to try and remove directly some apps from the Gnome panel Applications menu (wishlist: menu-editor shortcut via contextual menu).
To reproduce: 1. Open the Applications menu 2. Open Graphics sub-menu (for instance, this is how I did and reproduced it but suspect it can work with any) 3. Chose an app launcher - I chose "Simple scanner" - and right click for contextual menu 4. Click so that one of the last contextual menus (i.e. Add as tray/menu) opens without highlighting either of the choices 5. wait for a couple of seconds with the whole cascading menus opened (Appplications/Graphics/app context menu/add tray) then roll over 1st two menus There it is, gnome-panel freezes. You can no longer use it. Very annoying: the Gnome Applications menu is frozen and always on top. Very very annoying: Alt+F2 launches gnome-application-control (Launch application) but it is frozen so I needed to lanch system-monitor to restart gnome-panel. Alt+F2 launched but it not response to any command that I typed it. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/556311 Title: gnome-panel freeze on cascading contextual app-launcher menu -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs