I wonder whether anyone can help me please?
I am a private individual and have been using Ubuntu for many, many years and am now 76 years old. I have no programming experience at all but I can following instructions if they are clear enough for an amateur to understand and apply.
During the years using Ubuntu I have not experienced any problems until now. I am using Ubuntu 16.04 64 bit. I was using the computer a couple of weeks ago and a Security Update flagged up and as usual I installed it.
When restarting the computer later that day it loaded showing only my desktop but without ‘sidebars’ and the cursor was a black ‘X’. I was unable to move or exit from the desktop without switching off the computer. Right clicking the mouse showed a number of options but nothing to enable me to exit. I restarted and an error message popped up;- Executable Path /usr/lib/x86_64 linux-gnu/unity/compiz-config-profile-setter. Package Unity 7.4.5 +16.04.2017..
I was able to re-start in ‘Recovery Mode’ and the desktop appears I believe with all the relevant items that were there before, but the screen is elongated from left to right.
I shall be grateful for any assistance you can give to enable me to correct this situation and would like to express my thanks in advance for your help.