I installed gnome control centre following the instructions from How to geek because I wanted to use google drive on 16.04. Installation worked, googledrive worked and I was happy. Then I restarted my computer and everything has gone nuts. The desktop changed to black,right-click menus are barely readable and squashed up, the theme colours are replaced with really bad colours, but the worst part? the OK/Cancel buttons etc. don't appear in all applications so I can't even change things back manually... the whole OS is only half useable.
Does anyone know what's gone wrong and how can I fix it? Ideally without needing a fresh install and ideally keeping access to googledrive in some form, though it's not necessary.
sudo dconf reset -f /org/compiz/
doesn't do anything – Bamboo Feb 02 '17 at 07:12