problems caused by DOCTYPE

Hi,

I'd like to transform an xml file to another.

I have the input file like:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE project SYSTEM "mga.dtd">

<project>
        This is my project
</project>

And a stylesheet file like:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
version="1.0">

<xsl:output method="xml" omit-xml-declaration="no"
doctype-system="mga.dtd" indent="yes"/>

<xsl:template match="/">
        <xsl:copy-of select="."/>
</xsl:template>

</xsl:stylesheet>


My problem is (I use xalan1.7) that with the DOCTYPE line in the input
file the transformation doesn't succeed, however no stylesheet
compilation or other error is produced. If I remove it is works fine.

Thanks, Zolmol