pgsql bug

psql (PostgreSQL) 8.3.3

When creating the first QT block it reports.

* warning: pg_query() [function.pg-query]: Query failed: ERROR: currval of sequence "quicktabs_qtid_seq" is not yet defined in this session in /media/disk/var/drupal-6.6/includes/database.pgsql.inc on line 138.
* user warning: query: SELECT CURRVAL('bbase_v3a2quicktabs_qtid_seq') in /media/disk/var/drupal-6.6/includes/database.pgsql.inc on line 231.

when trying to create second QT block it fails

* warning: pg_query() [function.pg-query]: Query failed: ERROR: currval of sequence "bbase_v3a2quicktabs_qtid_seq" is not yet defined in this session in /media/disk/var/drupal-6.6/includes/database.pgsql.inc on line 138.
* user warning: query: SELECT CURRVAL('bbase_v3a2quicktabs_qtid_seq') in /media/disk/var/drupal-6.6/includes/database.pgsql.inc on line 231.
* warning: pg_query() [function.pg-query]: Query failed: ERROR: duplicate key value violates unique constraint "bbase_v3a2quicktabs_pkey" in /media/disk/var/drupal-6.6/includes/database.pgsql.inc on line 138.
* user warning: query: INSERT INTO bbase_v3a2quicktabs (qtid, title, tabs) VALUES(0, 'Test', 'a:2:{i:0;a:7:{s:5:"title";s:3:"new";s:4:"type";s:5:"block";s:4:"bvid";s:12:"user_delta_2";s:10:"hide_title";i:0;s:6:"weight";s:3:"-10";s:4:"args";N;s:7:"display";N;}i:1;a:7:{s:5:"title";s:6:"online";s:4:"type";s:5:"block";s:4:"bvid";s:12:"user_delta_3";s:10:"hide_title";i:0;s:6:"weight";s:2:"-9";s:4:"args";N;s:7:"display";N;}}') in /media/disk/var/drupal-6.6/sites/all/modules/quicktabs/quicktabs.module on line 582.