Thats my sources list: # less /etc/apt/sources.list deb http://ftp.us.debian.org/debian testing main contrib non-free deb-src http://ftp.us.debian.org/debian testing main contrib non-free deb http://ftp.debian.org/debian/ testing-updates main contrib non-free deb-src http://ftp.debian.org/debian/ testing-updates main contrib non-free deb http://security.debian.org/ testing/updates main contrib non-free deb-src http://security.debian.org/ testing/updates main contrib non-free deb http://debian-mirrors.sdinet.de/debian-multimedia stable main deb-src http://debian-mirrors.sdinet.de/debian-multimedia stable mainAs we can see - i must have testing branch only But: # lsb_release -a No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux testing/unstable Release: testing/unstableCodename: n/awhere does unstable appear from? And i have very strange situation - i can not install filezilla:#aptitude install filezilla No candidate version found for filezilla No candidate version found for filezillaWhat is wrong with my sources.list?Thanks in advance.