vs on "OpsCenter not reporting System Properties on Windows Server 2008"

I am running DataStax Community with Cassandra 1.1.6 on a machine with Windows Server 2008 and 8 GB of RAM.
The OpsCenter reports Write and Read Requests and Latency without any problem but does not report any System properties like OS:Memory, OS:Disk Usage and OS:Disk Throughput.

I have a 6 node cluster with All Agents Connected.
Is there some configuration setting missing or is it possible that the agents are not reading the Windows System properties?

Thanks,
VS