[Zope] Pb with object not found

Hello to all, We have probleme when we test a web site under linux Red hat 5.2 with Apache 1.3.3 and zope 1.10.2 If there is a link to an object which doesn't exist in the database of ZOPE, when we try to access this file with a browser, we do not have the message "file not found" but the server send a arbitrary page, welcome.htm with us ! Why ? What is the respond of ZOPE if he receive a request from APACHE to an objet (a html page) which doesn't exist in the database ? Thanks for help.