Windows Server 2008 - ifstat RRD files

I have BBWin 0.12 installed on a good number of windows machines,
mostly server 2003 but 5 or 6 run server 2008. All the 03 machines
report network traffic fine. All of the 08 machines are seeing
'random' network adapter addresses and bogus traffic info. The
following is an example of what's being reported under [ifstat]:

0.96.0.0 0 0
99.0.0.0 1598858570 2041621859
7.0.0.0 0 0
69.2.0.0 0 0
4.0.0.0 0 0
28.0.0.0 0 0

Those addresses change each time the client sends data. Anyone have a
fix? Or at the very least turn off the creation of rrd files for these
specific hosts. At the moment I have a few hosts with about 10,000
'network adapters' that all try to graph on the trends page.

(Originally posted to the BBWin list last week but no replies yet.
There's more eyes here anyway.)

Thanks