ntp drift file error..

Hiya! I run SuSE Pro 9.0, all ntp default settings. In the ntp log, I constantly see this: 26 Mar 08:46:30 ntpd[12441]: can't open /var/lib/ntp/drift/ntp.drift.TEMP: No such file or directory I've tried to touch files named ntp.drift and ntp.drift.TEMP, changed ownership on them to ntp:nogroup with -rw-r--r-- rights, still the same message. Can someone please help me out here? Anders.