http://blogs.technet.com/kevinholman/archive/2009/06/22/health-service-and-monitoringhost-thresholds-in-r2-how-this-has-changed-and-what-you-should-know.aspxIn THIS post – I described the way the agent HealthService will bounce on a regular basis, and how to alert on that, and change the thresholds.  Please see that post for details on SP1.   Now – in R2 – much of this has changed in how it works. en-USCommunityServer 2.1 SP1 (Build: 61025.2)