macaddr stuff !

Hi,

I have no one to turn to. I've tried here & there but got no answer.
Why is there is a problem creating unique indices on macaddr columns even
if there ARE NO (checked by count on distinct,group by) duplicated keys ?

And finally :

create table tmac (i int4,mac macaddr);
insert int table tmac (i) values (1);
insert int table tmac (i) values (2);
insert int table tmac (i) values (3);
select * from tmac where mac='01:02:03:04:05:06';

I get backend termination no matter if table has indices, is vacuumed ,
is new or even just after the postgres instalation.

HELP !

Oh, I use 6.4.2 under i386 Redhat 5.2 Linux.

Pawel Pierscionek,