apt-get dist-upgrade 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Calculating upgrade... Done
The following NEW packages will be installed:
  entrance-themes
The following packages have been kept back:
  e-utils e17 eclair eem efl-all elapse elicit elitaire elpanel engage
  engage-module enhance enity enthrall entice entrance entropy envision equate
  etk evfs examine exhibit feh network-admin-tutorial rage
0 upgraded, 1 newly installed, 0 to remove and 26 not upgraded.
Need to get 0B/2624kB of archives.
After unpacking 2806kB of additional disk space will be used.
Do you want to continue [Y/n]? y
Gtk-WARNING **: Unable to locate theme engine in module_path: "experience", at /usr/share/perl5/Debconf/FrontEnd/Gnome.pm line 68, <> line 1.
(Reading database ... 93473 files and directories currently installed.)
Unpacking entrance-themes (from .../entrance-themes_cvs20070902_all.deb) ...
dpkg: error processing /var/cache/apt/archives/entrance-themes_cvs20070902_all.deb (--unpack):
 trying to overwrite `/usr/share/entrance/themes/elivestyle.edj', which is also in package entrance
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Errors were encountered while processing:
 /var/cache/apt/archives/entrance-themes_cvs20070902_all.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)