HA Agent Error

Good afternoon,

I have recently built eight ESX servers (3.0.2). I am running VC 2.5. I consistently recieve the following error messages:

HA agent on <servername> in cluster <clustername> has an error:

The error message either goes away by itself or it I have to manually right click on the server and select the option to reconfigure the HA service. I can't figure out what this happens. Has anyone else seen this error message and how did you fix it?

Thanks