Ubuntu 1463-5: Unity 2D update
Summary
Update Instructions
The problem can be corrected by updating your system to the following package versions: Ubuntu 11.04: unity-2d-launcher 3.8.4.1-0ubuntu1.2 After a standard system update you need to restart your Unity 2D session to make all the necessary changes.
References
https://ubuntu.com/security/notices/USN-1463-5
https://ubuntu.com/security/notices/USN-1463-1
https://ubuntu.com/security/notices/USN-1463-2, https://launchpad.net/bugs/1016386
Package Information
https://launchpad.net/ubuntu/+source/unity-2d/3.8.4.1-0ubuntu1.2