Can't set UID 0?

[Harry Hanson]

Am receiving this error when starting mailscanner:

/etc/init.d/mailscanner start
Starting virus scanner...
Can't set UID 0 at /usr/share/mailscanner/logger.pl line 60.

Logs show:

Sep 30 17:00:01 /USR/SBIN/CRON[1939]: (root) CMD ([ -f $LOCKFILE ] && exit
0; trap "rm -f $LOCKFILE" EXIT; touch $LOCKFILE; /usr/sbin/check_mailscanner
>/dev/null 2>&1; exit 0)
Sep 30 17:00:02 cet mailscanner[1967]: MailScanner E-Mail Virus Scanner
version 3.13 starting.
Sep 30 17:00:02 mailscanner[1967]: Configuring mailscanner for sendmail...
Sep 30 17:00:02 mailscanner[1968]: ECS MailScanner setting UID to root (0)
Sep 30 17:00:02 mailscanner[1968]: Can't set UID 0

Sendmail 8.12.3/8.12.3/Debian-6.6
MailScanner 3.13

Please advise. Thank You.