Package: gparted Version: 0.30.0-3 The i386 package is missing the file /usr/share/polkit-1/actions/org.gnome.gparted.policy which does exist in the amd64 package.
Also, the i386 /usr/bin/gparted script isn't quite the same as the amd64 one.
Trying to start gparted from the Xfce menu, using the .desktop file, of course fails with the error "Root privileges are required for running GParted".
Regards, Frank