Same here (also XFCE). Upgraded from saucy to trusty on 2014-04-06, everything up to date and working. Booting today (2014-04-10) and the nm-applet icon is not visible. Killing and restarting nm-applet from the command line does not help.
$ lsb_release -rd Description: Ubuntu Trusty Tahr (development branch) Release: 14.04 $ apt-cache policy network-manager network-manager: Installed: 0.9.8.8-0ubuntu5 Candidate: 0.9.8.8-0ubuntu5 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1301158 Title: nm-applet icon invisible To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1301158/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs