cannot update the system

[Paolo Ciarrocchi]

Hi all,
does anybody know why I'm getting the following message from apt?

paolo at Italia:~/linux-2.6$ sudo apt-get upgrade
Reading package lists... Done
Building dependency tree... Done
The following packages have been kept back:
  gnome-cups-manager python-netcdf
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.
paolo at Italia:~/linux-2.6$ sudo apt-get dist-upgrade
Reading package lists... Done
Building dependency tree... Done
Calculating upgrade...Done
The following packages have been kept back:
  gnome-cups-manager python-netcdf
0 upgraded, 0 newly installed, 0 to remove and 2 not upgraded.


-- 
Paolo
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