Cluster Monitor Status Change - Node/Cluster ...root cause ?

[Graham Land]

I've recently become involved in the HPSIM (v4.2 sp1) operated by HP Managed Services on behalf of HMLR UK.
I'm trying to root cause two critical errors that keep appearing in the Critical Uncleared Events Log.

The critical errors are :

(1) Cluster Monitor Status Change - Cluster
Event Details - MSCS Resource: device status on cluster indeterminate

(2) Cluster Monitor Status Change - Node
Event Details - CPU Resource: at device status on node became critical.

These messages intermittently appear for all clusters being monitored by HPSIM.
When I examine the logs on all related nodes I'm unable to root cause the source of the problem.
Can you please indicate to me where I should be able to locate the source of these messages?
Nothing ever fails to work and I'm wondering is it a bug in the software?
All suggestions welcomed