I just got bitten by the same problem on squeeze. In my case I used DHCP when I first commissioned the machine, then swapped to a fixed IP once it was going. I am not sure why /var/lib/ntp/ntp.conf.dhcp wasn't cleaned up, but it's now been there unnoticed for many months across several reboots. Most of those reboots have been caused by power failures.
Ideally /etc/init.d/ntp should check if the dhclient that created /var/lib/ntp/ntp.conf.dhcp is still running and remove it if not. If that is too complex simply moving /var/lib/ntp/ntp.conf.dhcp to /var/run/ntp/ntp.conf.dhcp would ensure the problem gets fixed eventually, as everything in /var/run gets cleaned up on reboot. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org