annoying error in rrd-status.log with NCV module

NCV module doesn't filter status line, so I have flow of :

2006-06-29 16:28:11 RRD error updating /var/hobbit/data/rrd/hostname/ x25s.rrd from 192.168.1.11: unknown DS name 'greenThuJun2916' 2006-06-29 16:27:44 RRD error updating /var/hobbit/data/rrd/hostname/ cpuio.rrd from 192.168.1.12: unknown DS name 'yellowIOwaitishigh'