With a brand new plone I asked, as I'm not logged http://danielle.zettai.net/New_plone/index_html/manage_edit I keep waiting ... the window of Iexplore 6.0 doesn't respond anymore I notice that the title of the requested page is http://danielle.zettai.net/New_plone/login_form?came_from=http:3A//danielle.... if I asked in an another window http://danielle.zettai.net/New_plone/login_form?came_from=http://danielle.ze... it does work.... as it should be.. I'm asked to sign in ... meanwhile I have no such problems with Mozilla I looked at the source and I can see "irregularities" <a href=" http://... with a space between " and http OK I am anyway ready to give up Plone... I encountered too many problems already But just to be reassured... I looked at the rendered html given by a new Zope CMF portal (noname) and I can see as well, only in a smaller number (1 for the index_html), the same fault..... first it doesn't seem to have any consequences.. the link <a href=" http://danielle.zettai.net/noname/join_form">Join</a> is working... but if I try to import the URL http://danielle.zettai.net/noname/ in HTml toolkit, it is turn not to answered... at the contrary http://danielle.zettai.net/noname/index_html will work and would also also http://danielle.zettai.net/New_plone/ here the comment of Tidy for Zope CMF portal index_html "URIs must be properly escaped, they must not contain unescaped characters below U+0021 including the space character and not above U+007E. Tidy escapes the URI for you as recommended by HTML 4.01 section B.2.1 and XML 1.0 section 4.2.2. Some user agents use another algorithm to escape such URIs and some server-sided scripts depend on that. If you want to depend on that, you must escape the URI by your own. For more information please refer to http://www.w3.org/International/O-URL-and-ident.html"