prova ad aggiungere queste righe alla lista dei repository :
Sid :
deb
http://ftp.it.debian.org/debian/ unstable main contrib non-free
deb
http://non-us.debian.org/debian-non-US unstable/non-US main contrib non-free
deb
http://marillat.free.fr/ unstable main
Woody :
deb
http://security.debian.org/ stable/updates main
deb
http://ftp.it.debian.org/debian/ stable main contrib non-free
deb
http://non-us.debian.org/debian-non-US stable/non-US main contrib non-free
deb
http://marillat.free.fr/ stable main
Sarge :
deb
http://ftp.it.debian.org/debian/ testing main contrib non-free
deb
http://non-us.debian.org/debian-non-US testing/non-US main contrib non-free
deb
http://marillat.free.fr/ testing main