\l+ dumps core

I installed the postgresql-7.0.2-2 RPM downloaded from postgres.org, but \l+
always dumps core:

% psql
Welcome to psql, 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

jamesc=# select version();
version
---------------------------------------------------------------------
PostgreSQL 7.0.2 on i686-pc-linux-gnu, compiled by gcc egcs-2.91.66
(1 row)

jamesc=# \l+
List of databases
Database | Owner | Encoding | Description
-----------+----------+-----------+-------------
jamesc | jamesc | SQL_ASCII |
template1 | postgres | SQL_ASCII |
(2 rows)

zsh: segmentation fault (core dumped) psql
%