A kneejerk search of "health_check" on Metalink brought up a bunch of hits, including note 555439.1. Is your Solaris x86_64 by any chance? Rich > I am having some major issues with the OEM Agent after I upgraded it to > 10.2.0.4 on my production server. The OS is Solaris 64-bit version > 5.10. I had this same issue on my Sandbox which is 5.10 and my DEVTEST > server which is 5.9. I applied patch 6276119 which fixed the problem on [snip] -- //www.freelists.org/webpage/oracle-l