When I update package list (with u) in aptitude I get a lot of error like: GPG error http://ftp.debian.org the following signatures have not been verified because the public key is not available NO_PUBKEY <some numbers> I read something about apt-secure, but I didn't fin the aswer... What shall I do to fix this problem? Thnx PAolo -- if you have a minute to spend pleas visit my photogrphy site: http://mypic.altervista.org