I chrooted into the directory and ran apt-get install pluto-orbiter. It raised dependency issues that went like this:
pluto-orbiter needs pluto-avwizard
pluto-avwizard needs pluto-xine-player
pluto-xine-player needs libxine1
libxine1 needs libmagick10
libmagick10 needs libgraphviz4
Finally, libgraphviz4 allowed me to install it. Then I tried to go back up the chain, but libmagick10 raised the following dependency error:
libmagick10: Depends: libgraphviz4 (>= 2.20.0) but 2.18-1ubuntu2 is to be installed
E: broken packages
I tried apt-get install 2.18-1ubuntu2 but that failed (no such package).
I'm also getting the following errors when I run apt-get update:
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/intrepid/main/binary-i386/Packages.gz 404 Not Found [IP: 18.104.22.168 80]
W: Failed to fetch http://fastspeedtest.net/mirrors/ubuntu/dists/intrepid/Release Unable to find expected entry non-free/binary-i386/Packages in Meta-index file (malformed Release file?)
W: Failed to fetch http://fastspeedtest.net/mirrors/ubuntu/dists/pool/main/binary-i386/Packages.gz 404 Not Found
W: Failed to fetch http://fastspeedtest.net/mirrors/ubuntu/dists/replacements_debian/main/binary-i386/Packages.gz 404 Not Found
E: Some index files failed to download, they have been ignored, or old ones used instead.
Any other ideas ? Thanks so much posde for your help.