It would help to at least know against which version of the database you are trying to connect and also what client (with version) you are using. Any other connection-related information (password based; ident; etc...) would be helpful as well. David J. -- View this message in context: http://postgresql.1045698.n5.nabble.com/invalid-frontend-message-type-136-tp5769775p5769778.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general