Further to my query I now find I can not install any software when I do I receive a message that there is a problem with the software already installed. Then when I try to have it repaired it fails:
dpkg: error processing archive /var/cache/apt/archives/uberstudent-xfce-default-settings-helper_1.7.7_all.deb (--unpack):
pre-dependency problem - not installing uberstudent-xfce-default-settings-helper
Errors were encountered while processing:
Error in function:
dpkg: dependency problems prevent configuration of uberstudent-xfce-default-settings-enduser:
uberstudent-xfce-default-settings-enduser depends on uberstudent-xfce-default-settings-helper (>= 1.6.2); however:
Package uberstudent-xfce-default-settings-helper is not installed.
dpkg: error processing package uberstudent-xfce-default-settings-enduser (--configure):
dependency problems - leaving unconfigured
I assume there is a clue there somewhere but I have no idea what to do if I found it. I am just drowning without a life raft hoping that a super-tanker might pass my way.