After a major change of desktop like a switch from gnome 2 to unity or gnome 3, it is not surprising that users may need to refresh their configuration files. I

After a major change of desktop like a switch from gnome 2 to unity or gnome 3, it is not surprising that users may need to refresh their configuration files. I am doing dist-upgrade since 2009. They were all smooth except the upgrade to 16.04 (lost of network and a couple of small issues still not fixed).