[Zope] ZCatalog textindex question

Hi... I've created a new ZCatalog with a TextIndex and a TextIndexNG (as well as several FieldIndexes). My objects are cataloged and uncataloged programatically throught "catalog.catalog_object" and "catalog.uncatalog_object" methods. My problem is simple : after several deletions, I only have 5 objects referenced in the catalog, but TextIndex and TextIndexNG always say that 11 objects are referenced. Is it normal ?? Thanks, Thierry -- Linux every day, keeps Dr Watson away... http://gpc.tuxfamily.org -- http://www.ulthar.net