Broken package install in Flidas

After installing in Flidas just about every package I can remember using in Belanos, plus a few
more, I reached an impasse with the package Psensor. I use Psensor when running Panorama to
generate combined images from many (ca. thirty) individual digital images. In addition to
showing that Panorama and my T420 laptop can keep the processor temperatures under control, it
also lets me tell where we are in the processing.

Add/Remove Applications says there are broken packages that must be fixed ...

Mate terminal also choked:
[QUOTE] sudo apt-get -f install psensor
[sudo] password for [user]:
Reading package lists... Done
Building dependency tree
Reading state information... Done
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:
The following packages have unmet dependencies:
psensor : Depends: libxnvctrl0 but it is not installable
E: Unable to correct problems, you have held broken packages.[/QUOTE]

The situation is not desperate ... I still have Belanos on the same 'puter ... with a working Psensor.

George Langford