[Lenyacms-dev] Problem with validating parser

The parser I am using seems to be validating, which causes an error when 
there's a dtd reference in an xml document (e.g. in the New Lenya 
Documentation). According to cocoon.xconf the default value for the xml 
parser used by cocoon (JaxpParser) is non-validating. Does anyone have 
an idea why my parser is validating and how I could change this setting?

I am using the standard setting as recommended on 
http://www.wyona.org/download/downloading_and_installing.html.

My Java is:
j2sdk1.4.1_02

Platform:
Windows XP

Thanks for your help
-Felix