after having moved to Zope 2.2 and fiddling with updating a Portal based on
the PTK, I get rather strange errors when trying to read a news item. (I am
posting this to both mailing lists because I do not know which one this
error could related to.) There is _no_ error immediately after restarting
the Zope, but after several seconds/accesses, the error message below
raises. Additionally, there is _no_ error when I access the very same item
as a registeres Portal user, but it raises again if tried to access as
(anonymous) guest.

Error Type: IOError
Error Value: [Errno 5] Input/output error

with the traceback

Traceback (innermost last):
  File /opt/zope22/lib/python/ZPublisher/Publish.py, line 222, in
  File /opt/zope22/lib/python/ZPublisher/Publish.py, line 187, in publish
  File /opt/zope22/lib/python/Zope/__init__.py, line 221, in
    (Object: Dia-Bank)
  File /opt/zope22/lib/python/ZPublisher/Publish.py, line 171, in publish
  File /opt/zope22/lib/python/ZPublisher/mapply.py, line 160, in mapply
    (Object: index_html)
  File /opt/zope22/lib/python/ZPublisher/Publish.py, line 112, in
    (Object: index_html)
  File /opt/zope22/lib/python/App/special_dtml.py, line 121, in __call__
    (Object: index_html)
  File /opt/zope22/lib/python/DocumentTemplate/DT_String.py, line 502, in
    (Object: index_html)
  File /opt/zope22/lib/python/OFS/DTMLMethod.py, line 163, in __call__
    (Object: standard_html_header)
  File /opt/zope22/lib/python/DocumentTemplate/DT_String.py, line 502, in
    (Object: standard_html_header)
  File /opt/zope22/lib/python/DocumentTemplate/DT_Util.py, line 337, in eval
    (Object: getPortal().getToolbox(REQUEST)(this(),REQUEST))
    (Info: this)
  File &lt;string&gt;, line 0, in ?
  File /opt/zope/lib/python/Products/PTKBase/Toolbox.py, line 38, in
IOError: (see above)


Could you help to correct this, please? Are there any proxy roles to be set
(I tried manager on recent_news and others, but none worked)? My
installation includes a SiteRoot and TransparentFolder, and was ok before
the upgrading (which apart from above is marvellous!).

Thanks! -- Ralf Herold

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