Ah, fra l'altro sul terminale dopo aver inserito il comando mi esce:

norman@norman-desktop:~$ sudo kwrite /etc/apt/sources.list
Error: "/var/tmp/kdecache-norman" is owned by uid 1000 instead of uid 0.
Error: "/tmp/kde-norman" is owned by uid 1000 instead of uid 0.

mmm...ho un demone del mondo antico nel terminale?
SANDRO