(Ted Harding) wrote:
NOT AUTHENTICATED: libpostproccvs51
To be installed: libfribidi0 liblzo2-2 libpostproccvs51
and I then choose to Mark these. Result:
mencoder: Depends: libdvdnav4 but it is not going to be installed Depends: libmpcdec3 but it is not installable Depends: libtwolame0 but it is not installable
Is it simply that you don't have the universe/multiverse repositories enabled in your /etc/apt/sources.lst certainly libdvdnav and libtwolame belong in there because they are potentially patent encumbered.
If this is the case then once enabling them you will need to run apt-get update to refresh the list of available packages.
Or you can do this from synaptic via settings/repositories