Interface SNMP query graphs not working

[not_skeletor]

I am running cacti v 0.8.6c on my Gentoo machine. All graphs for localhost work wonderfully. Interface stats, paritions, etc.

However, I am monitoring three other RH9 boxes, all with net-snmp installed. ANY traffic graphs do not show up. They are not broken-images, they are just not there at all. The links undernieght to expand the grpahs are there, but not the graphs themselves.

If I use any other sort of query, for say mounted partitions or server load, the graphs for these machines are fine. But, what I really want are bandwidth stats.

I am at a total loss as to why this is happening. I assume something with RH9 and snmp queries, as I have copied the graphing and queries from my Gentoo machine (which work fine). I have tried running under v1 and v2: no change. An snmpwalk query and/or snmpget query running on any of the machines worksfine. What am I missing?