I'm also hit by this bug, using it as mine main OS i get theme reverted back to default after every login, after few seconds. I can get the panel decoration back killing gnome-settings-daemon and restarting it, but the icons and overall theme is the default one. Just the window title seems to have the right decoration.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/728803 Title: Ubuntu theme switches from partially broken to gnome default on VirtualBox guest -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs