I have encountered an unusual situation which I believe may be related to collector item #505 (http://www.zope.org/Collectors/Zope/505 - ZCTextUndex should not hold a reference to a lexicon). Prior to performing a ZCatalog update I cleared the catalog (using the clear catalog option under the Advanced tab of the ZMI); then, to clear out the Lexicon, I deleted the Lexicon and created a new Lexicon (id of both was 'Lexicon'). I then added about 805,000 records to the ZCatalog (which went smoothly) and tested catalog searches - all went well, including globbing searches, 'and', 'and not' searches. The previous Lexicon had 764,410 word entries. The current Lexicon has 0 word entries. The ZCatalog and ZCTextIndex appear to be working ok, so I am guessing that somehow the ZCTextIndex is using a 'hidden/old' version of the Lexicon (not the newly created version) - which is very strange, as the .fs file was packed prior to the update (so any old versions should have been deleted). This activity was all performed on a linux server running zope 2.6.1 Finally, the questions: 1) Can ZCTextIndex really be using the some other version of the Lexicon (which I can not access via the ZMI)? 2) Was Collector Item #505 ever fixed (I can not find a reference to issue #505 in any of the zope change logs)? Thanks, Jonathan