Syslog is not updating

TEMP: Permission denied Feb 24 icache1 ntpd[2796]: can't open /var/ntp/ntp.drift.

TEMP: Permission denied Feb 25 icache1 ntpd[2796]: can't open /var/ntp/ntp.drift.

This one file contains these entries: Jan 31 icache1 syslogd 1.4.1: restart.

In our production environment the /var/log/messages file is not logging any of these events.

In every file but one there is a single line logging that syslog started up but that is all.

In our release environment, the /var/log/messages file is logging hourly failures of ntp time synchronization.

It is also logging when we stop and restart the syslog service.

/var/log/cron, cron.1, cron.2, cron.3 and cron.4 are all between 8KB and 15KB in size.