I get these errors when I try an apt-get update. Is there some fault on the repository servers?
W: Failed to fetch http://packages.siduction.org/kdenext/dists/kde-frameworks/main/i18n/Translation-en_GB Bad header line
W: Failed to fetch http://packages.siduction.org/kdenext/dists/kde-frameworks/main/i18n/Translation-en Bad header line
W: Failed to fetch http://ftp.spline.de/pub/siduction/base/dists/unstable/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ftp.spline.de/pub/siduction/base/dists/unstable/main/binary-i386/Packages Bad header line
W: Failed to fetch http://ftp.spline.de/pub/siduction/extra/dists/unstable/main/binary-i386/Packages 404 Not Found
W: Failed to fetch http://ftp.spline.de/pub/siduction/fixes/dists/unstable/main/binary-amd64/Packages 404 Not Found
W: Failed to fetch http://ftp.spline.de/pub/siduction/fixes/dists/unstable/main/binary-i386/Packages 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.