The Zope 2.3 CVS has had the file main.dtml updated to fix problems with objects that don't do "get_size" properly (collector #1900). I've updated the following files from PlugIns accordingly. lib/python/Products/PlugIns/www/PlugInGroup.dtml lib/python/Products/PlugIns/www/main.dtml You can find copies here: http://www.cat-box.net/steve/PlugInGroup.dtml http://www.cat-box.net/steve/main.dtml -- Steve Alexander Software Engineer Cat-Box limited http://www.cat-box.net