Hi all, I have a problem. I have a folder that contains file objects that contain text/xml. (I know I could have used XMLDocuments, but I found them too slow). These documents are being rendered to html via xsl in an external method, using a java based xsl processor and this is pretty much working well, but. Some of the documents cause the error below, any ideas? Error Type: TypeError Error Value: argument 1: expected read-only character buffer, ImplicitAcquirerWrapper found Traceback (innermost last): File C:\PROGRA~1\zope\lib\python\ZPublisher\Publish.py, line 214, in publish_module File C:\PROGRA~1\zope\lib\python\ZPublisher\Publish.py, line 179, in publish File C:\PROGRA~1\zope\lib\python\Zope\__init__.py, line 202, in zpublisher_exception_hook (Object: ElementWithAttributes) File C:\PROGRA~1\zope\lib\python\ZPublisher\Publish.py, line 165, in publish File C:\PROGRA~1\zope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: render_html) File C:\PROGRA~1\zope\lib\python\ZPublisher\Publish.py, line 102, in call_object (Object: render_html) File C:\PROGRA~1\zope\lib\python\OFS\DTMLDocument.py, line 166, in __call__ (Object: render_html) File C:\PROGRA~1\zope\lib\python\DocumentTemplate\DT_String.py, line 502, in __call__ (Object: render_html) File C:\PROGRA~1\zope\lib\python\DocumentTemplate\DT_Util.py, line 335, in eval (Object: apply_xsl(xml=doc,xsl=anstey_xsl)) (Info: anstey_xsl) File <string>, line 0, in ? File C:\PROGRA~1\zope\lib\python\Products\ExternalMethod\ExternalMethod.py, line 255, in __call__ (Object: apply_xsl) (Info: ((), {'xsl': <File instance at 08D78F00>, 'xml': 'unit2'}, ('', ''))) File C:\PROGRA~1\zope\Extensions\comtest.py, line 91, in apply_xsl (Object: ElementWithAttributes) TypeError: (see above) I am using Zope 2.1.0 on NT. Any help would be greatly appreciated. TIA Phil phil.harris@zope.co.uk