Network bandwidth graph stopped working

[jnojr]

On a Windows 2003 Server host, I've had cacti working just fine for months. A few weeks ago, the network bandwidth graph stopped getting updated. The data source debug says:

/usr/bin/rrdtool create \
/var/www/cacti/rra/mda-brite2_traffic_in_42.rrd \
--step 300 \
DS:traffic_in:COUNTER:600:0:1000000000 \
DS:traffic_out:COUNTER:600:0:1000000000 \
RRA:AVERAGE:0.5:1:600 \
RRA:AVERAGE:0.5:6:700 \
RRA:AVERAGE:0.5:24:775 \
RRA:AVERAGE:0.5:288:797 \
RRA:MAX:0.5:1:600 \
RRA:MAX:0.5:6:700 \
RRA:MAX:0.5:24:775 \
RRA:MAX:0.5:288:797 \

What can I look at to find out what went wrong? Everything else is still working just fine.

[BSOD2600]

please read/follow http://forums.cacti.net/viewtopic.php?t=11747