Still no joy on this error message when I try to change
the AT Service account details on an NT4 server that has
been migrated to a new domain.

The tecnet article 321204 does not help in any way as this
machine was working fine until the domain change.

I have removed scheduled tasks and gone back to the AT
scheduler and this works, I have then set this to use the
system account authority and it still works, reinstalled
the scheduled tasks and I am back to the "Unable to
determine AT Service Account information" message.

Adrian