That would explain it :-) I know it actually runs RTR, not SLA, but figured since IPM configured it that it was supported.
While the IP SLA commands exist on earlier code, the feature was not officially supported (i.e. fully committed and tested) before 12.2(40)SE.
Thanks Joe. I think Ill simply remove the collectors from this source device. You e expertise, as always, is much apprecaited.