http://blogs.technet.com/cliveeastwood/archive/2007/08/19/kb939799-the-system-center-operations-manager-2007-agent-is-unable-to-restart-the-health-service-after-its-monitored-thresholds-are-breached.aspxKB939799 has been published discussing the problem with Private Bytes threshhold and Handle Count threshold ovrride issues (override is not applied correctly). A hotfix for this issue is now available which corrects this issue together with Healthserviceen-USCommunityServer 2.1 SP1 (Build: 61025.2)