7.3B3 psql talking to a 7.2.3 server?

Is the following supposed to work?

$ psql -U neteng -h tide netmaster
ERROR: parser: parse error at or near "."
Welcome to psql 7.3b3, the PostgreSQL interactive terminal.

Type: \copyright for distribution terms
\h for help with SQL commands
\? for help on internal slash commands
\g or terminate with semicolon to execute query
\q to quit

netmaster=> select version();
version
---------------------------------------------------------------------
PostgreSQL 7.2.1 on i386-portbld-freebsd4.5, compiled by GCC 2.95.3
(1 row)

netmaster=>

neteng **IS** a superuser on tide.

--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: ler(at)lerctr(dot)org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749