Coeur, you have to update unity from trusty-proposed as instructed in comment #26 https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1302885/comments/26
Coeur, you have to update unity from trusty-proposed as instructed in comment #26 https:/ /bugs.launchpad .net/ubuntu/ +source/ unity/+ bug/1302885/ comments/ 26