See
http://ubuntuforums.org/showthread.php?t=583176, 3rd comment.
or
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/80765
See
http:// ubuntuforums. org/showthread. php?t=583176, 3rd comment.
or
https:/ /bugs.launchpad .net/ubuntu/ +source/ ubiquity/ +bug/80765