If you remove and re-add the notification area this makes the icon display as well. I've got this happening on two PC's that have been running Ubuntu since Karmic 5. It did previously display properly until Beta releases started happening I believe.
If you remove and re-add the notification area this makes the icon display as well. I've got this happening on two PC's that have been running Ubuntu since Karmic 5. It did previously display properly until Beta releases started happening I believe.