inconsistent apt-get output

[Pierre Frenkiel <pierre.frenkiel@laposte.net>]

hi,
I have with network-admin a problem already reported in several forums
and bug reports: the "interfaces" tab is missing. Following a fix proposed
somewhere, I tried to install the package gnome-network-admin. I got the 
following:

==>apt-get install gnome-network-admin

   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:
    gnome-network-admin : Depends: gnome-system-tools but it is not going to be installed
   E: Broken packages

==>dpkg -l gnome-system-tools

   Desired=Unknown/Install/Remove/Purge/Hold
   | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
   |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
   ||/ Name                     Version                  Description
   +++-========================================================================
   ii  gnome-system-tools       2.30.2-2                 Cross-platform . . .


Can you tell me whether  "Broken package" apply to gnome-system-tools or to
gnome-network-admin, and if there is a way to solve the problem.

Thanks in advance.

regards,
--
Pierre Frenkiel