Hi All, Does anyone know why this is happening and what action I can take to fix the problem? Regards John Ign http://nz.archive.ubuntu.com hardy-backports/universe Translation-en_NZ Ign http://nz.archive.ubuntu.com hardy-backports/multiverse Translation-en_NZ Hit http://nz.archive.ubuntu.com intrepid Release.gpg Ign http://nz.archive.ubuntu.com intrepid/main Translation-en_NZ Ign http://nz.archive.ubuntu.com intrepid/universe Translation-en_NZ Ign http://nz.archive.ubuntu.com intrepid/restricted Translation-en_NZ Ign http://nz.archive.ubuntu.com intrepid/multiverse Translation-en_NZ Get:4 http://nz.archive.ubuntu.com intrepid-updates Release [51.2kB] Ign http://nz.archive.ubuntu.com intrepid-updates Release Hit http://nz.archive.ubuntu.com hardy-backports Release Hit http://nz.archive.ubuntu.com intrepid Release Hit http://nz.archive.ubuntu.com intrepid-updates/main Packages Hit http://nz.archive.ubuntu.com intrepid-updates/restricted Packages Hit http://nz.archive.ubuntu.com intrepid-updates/universe Packages Hit http://nz.archive.ubuntu.com intrepid-updates/multiverse Packages Hit http://nz.archive.ubuntu.com hardy-backports/main Packages Hit http://nz.archive.ubuntu.com hardy-backports/restricted Packages Hit http://nz.archive.ubuntu.com hardy-backports/universe Packages Hit http://nz.archive.ubuntu.com hardy-backports/multiverse Packages Hit http://nz.archive.ubuntu.com intrepid/main Packages Hit http://nz.archive.ubuntu.com intrepid/universe Packages Hit http://nz.archive.ubuntu.com intrepid/restricted Packages Hit http://nz.archive.ubuntu.com intrepid/multiverse Packages Fetched 380B in 5s (71B/s) Reading package lists... Done W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://security.ubuntu.com intrepid-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster(a)ubuntu.com> W: GPG error: http://nz.archive.ubuntu.com intrepid-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster(a)ubuntu.com> W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/intrepid-security/Release W: Some index files failed to download, they have been ignored, or old ones used instead.