Removing the argument worked for me in Jaunty. I attached the exact diff i applied in case it helps any.
** Attachment added: "jaunty-openbox.diff" http://launchpadlibrarian.net/25595446/jaunty-openbox.diff -- openbox/Gnome wont launch from gdm https://bugs.launchpad.net/bugs/272418 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs