I'm sorry, I'm not quite used to mailing lists: I directly answered to the
e-mail just because on the e-mail it told that the answer would be added to
the conversation, and I thought it would be the same.
About your questions (sorry, I really forgot to answer):
- There is no trace of Octave in PATH (it references to /opt/pgi,
/usr/local/sbin, /usr/local/bin, /usr/sbin, /usr/bin, /sbin, /bin,
/usr/games and /usr/local/games)
- which octave (since I've removed the error-generating package by "sudo
apt-get remove octave") returns nothing
- About the third party packages: sorry I'm not a real expert about what may
be in conflict with Octave's dependencies, but the only third party packages
installed come from Portland Group (C/C++/Fortran compiler) and Java has
been installed directly via software center. I don't know how to verify, but
I do not think third party PPAs have been added to the system.
Thanks again for your extensive help!