Just an FYI that I posted about resetting the health state of your systems using the GreenMachine utility over on our new OperationsMgr blog:

http://blogs.technet.com/operationsmgr/archive/2009/01/20/resetting-the-health-state-of-your-systems-using-the-greenmachine-utility.aspx

Enjoy!

J.C. Hornbeck | Manageability Knowledge Engineer