DomCount has problems with XHTML1.1 DTD

Hi,

please excuse me for contacting you directly, but perhaps it's of interest for
you; when I try to validate an XHTML document, Xerces-C says:

Fatal Error at file
http://www.w3.org/TR/xhtml-modularization/DTD/xhtml-framework-1.mod, line 89,
char 18
Message: An exception occurred! Type:NetAccessorException, Message:Could not
open file:

Errors occured, no output available

http://www.w3.org/TR/xhtml-modularization/DTD/xhtml-framework-1.mod
87-89 reads:

<!-- instantiate the Document Model module declared in the DTD driver
-->
%xhtml-model.mod;]]>

Tobi