Edit grid crashes adding new rows to table with autoincrement primary key.

Dear friends,

I'm seeing a problem consistently when using the edit grid to add new rows
to a table whose primary key has data type "bigserial." After completion of
editing the columns excluding that of the primary key, when I exit the
editing widget (e.g. by pressing the Enter key, or clicking the "Save the
changed row" button), the program ends immediately with a message from the
operating system that says, "pgAdmin3.exe has generated errors and will be
closed by Windows. You will need to restart the program. An error log is
being created."

Restarting pgAdmin and viewing the same table in the grid shows that the row
actually did get inserted prior to the crash. I get the same result if I
enter unique data in the primary key column.

Editing a table whose primary key is just plain old int2 does not manifest
the crash.

I've been able to repeat the error as described above many times.

My system data is shown below. Many thanks for any suggestions,

Dave

OS: Win2K with SP4
PostgreSQL version 8.1.3
pgAdmin III versions 1.4.1 and 1.4.2 (error is reproduced in both versions)

Table definition:

CREATE TABLE "Heritages"
(
heritage varchar(30) NOT NULL,
heritages_id int8 NOT NULL DEFAULT
nextval('"Heritages_heritages_id_seq"'::regclass),
CONSTRAINT "Heritages_pkey" PRIMARY KEY (heritages_id)
)
WITHOUT OIDS;
ALTER TABLE "Heritages" OWNER TO postgres;

--
David A. Nash, Ph.D.

OneSAF Architecture and Integration (SAIC)
(321) 235-7735 (Voice)
(321) 235-1606 (Fax)
david(dot)a(dot)nash(at)saic(dot)com