Thank you hggdh, the tilebars are back again. It's probably a configuration problem.If I create a new user account and log in to it, all settings seem to be ok. Before I used the command 'metacity --replace' the gconf entries /desktop/gnome/applications/window-manager/default and /desktop/gnome/applications/window-manager/current were empty.
-- [apport] metacity crashed with SIGSEGV https://bugs.launchpad.net/bugs/85763 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list [EMAIL PROTECTED] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs