I recently upgraded from Ubuntu 10.10 to 11.04. At the login screen I selected and currently use the Ubuntu-Classic option. After upgrading to 11.04, when I right-click on the top panel, all of the options are available (add to panel; properties, etc). When I select "Add to Panel", the dialog box of options does indeed appear. However, when I select an option and click the "Add" button, nothing happens. I also cannot drag/drop the selected icon up to the panel either.
Is there a simple fix for this? Thank you