still happening in precise, see the video on https://bugs.launchpad.net/ayatana-design/+bug/1020916/+attachment/3213068/+files/invisible_launcher_icon.ogv
still happening in precise, see the video on https:/ /bugs.launchpad .net/ayatana- design/ +bug/1020916/ +attachment/ 3213068/ +files/ invisible_ launcher_ icon.ogv