Not sure where to send this really. Quintagroup.SEOptimizer caused our site to explode in truly horrific ways in IE 6. Specifically, it generated <base href="1" /> tags which caused all image references to look for http://1/path/to/image.

I'm not an expert on plone development, but I think you should change quintagroup.seoptimizer-2.0.2-py2.4.egg/quintagroup/seoptimizer/browser/viewlets.py to do this instead (in keeping with plone core):

<code>
def renderBase( self ):
        # returns correct base href
        context = self.context.aq_inner

        # when accessing via WEBDAV you're not allowed to access aq_explicit
        try:
            if getattr(context.aq_explicit, 'isPrincipiaFolderish', 0):
                return context.absolute_url()+'/'
            else:
                return context.absolute_url()
        except (Unauthorized, 'Unauthorized'):
            pass
</code>

Email me at aphyr@aphyr.com if you've got questions, or if there's a better place to submit this.

What version of Plone do you have?

• Plone 3.1.7
• CMF 2.1.1
• Zope (Zope 2.10.6-final, python 2.4.4, linux2)
• Python 2.4.4 (#2, Oct 22 2008, 19:52:44)
  [GCC 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)]
• PIL 1.1.5

This issue was fixed in 2.0.5 version. Please use that version.