About a year ago there was some discussion on including an "on_ac_power" script in pmud so that anacron would know not to start when on battery power. http://lists.debian.org/debian-powerpc/2001/debian-powerpc-200112/msg00238.html But it was never included. I've made a non-perl version of on_ac_power at http://www.tinytoad.com/dkennedy/ppc/on_ac_power - perhaps this one could really make it into pmud? Thanks, David