OPC.Three..

The difference I see between your setup and mine from this is that I'm using a Domain account, rather than a local machine account.

Do you get the same behaviour with a Local account as with a Domain one?

I've set the perms on the root of the WMI tree, and so far nada. All the changes in the scripts that have been linked to are stages that I've followed to date, but it's still not happy. If it's not repeatable elsewhere with a domain account as a proxy (2008 functional level), then I'll spawn more text boxen here and see if there's a flaw in domain or local config.

But, again, perplexed on the running on this; the SQL Server Agent is running as a domain account, and the proxy is a domain account.

The last error I got from this was the system telling me that it wasn't happy with the way that the PnP subsystem was being accessed, which is a remote symptom of 2003+ trying to access as an unprivileged user.

I don't get this when running as the SQL Agent account itself, which has less privileges generally now than the proxy account..