Not scanning by index

I have a table:

create table forsamling (
id SERIAL,
for_id int4 unique not null,
kund_flag int8 not null default 1,
online smallint default 0,
klar smallint default 0,
);

create index forsamling_idx on forsamling(for_id,online,klar,kund_flag);

It has about 1000 entries in this table...

Why doesn't it go by indexes when i search the smallints and int8s, but it
works with the integer SERIAL (SERIAL creates it's own index)?

What can i do to make it go by index?

/Magnus

explain select * from forsamling where klar = 1;
NOTICE: QUERY PLAN:

Seq Scan on forsamling (cost=0.00..23.50 rows=1 width=88)

-----

explain select * from forsamling where kund_flag = 123;
NOTICE: QUERY PLAN:

Seq Scan on forsamling (cost=0.00..23.50 rows=1 width=88)

-----

explain select * from forsamling where for_id = 123;
NOTICE: QUERY PLAN:

Index Scan using forsamling_idx on forsamling (cost=0.00..2.01 rows=1
width=88)

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Programmer/Networker [|] Magnus Naeslund
PGP Key: http://www.genline.nu/mag_pgp.txt
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