Edward Bartolo <edbarx@???> writes:
> Maybe, this can shed some light on what is causing this problem. The
> first time dpkg-reconfigure is used on netman-gui it doesn't exit
> complaining the netman.desktop file is not found. This may mean the
> netman.desktop file is being deleted by a script called by
> dpkg-reconfigure, maybe, netman-gui.postinst?

        2) db_get netman-gui/netman-autostart
                if [ "$RET" = "true" ]; then
                        file="/etc/xdg/autostart/netman.desktop";
                        mv /usr/share/applications/netman.desktop /etc/xdg/autostart/
                fi      
        ;;

This moves the /usr/share/applications/netman.desktop file to
/etc/xdg/autostart, consequently, /usr/share/applications/netman.desktop
doesn't exist anymore afterwards. And it doesn't do anything in order to
disable autostartf if $RET is not true. If the /etc/xdg/autostart file
is not supposed to be modified, I suggest creating a symlink instead, ie

ln -s /usr/share/applications/netman.desktop /etc/xdg/autostart/

You could also use cp instead of mv so that the autostart file will be a
copy of the original.