ssh no longer connecting automatically

[Jonathon McKitrick]

Any idea why updating to 4.9 stable would give me this error?
I have to set it to protocol 1 and log in manually.  The auto login with the
id_rsa and authorized_keys doesn't seem to work anymore, but gives this
error:

neptune:~> ssh jcm at dogma.freebsd-uk.eu.org
key_verify failed for server_host_key


NOTE: Please CC me, as I am not currently subscribed.  Thanks.

jm
-- 
My other computer is your windows box.