My Ubuntu upgrade from 12.04 LTS to 13.10 (of course 12.10, 13.04 and then 13.10) led to some issues, I had to re-install Chrome, the text editor (gedit) is not working, this never gets launched now, accessing content in folders through nautilus file manager mostly leads to crash of it, this gets closed automatically. Docky crashes often, can not see current desktop wallpaper and a black desktop appears.
Please suggest me, should I simply format it and install 13.10 again? or is there a fix / repair possible? If formatting is the only option then how do I backup Skype?