SAXParser not found?

[Jody Schofield]

Greetings,

I'm getting the following exception and was wondering if anyone might now anything about it?

java.io.IOException: SAX2 driver class org.apache.xerces.parsers.SAXParser not found
        at org.apache.batik.dom.util.SAXDocumentFactory.createDocument(Unknown Source)
        at org.apache.batik.dom.util.SAXDocumentFactory.createDocument(Unknown Source)
        at org.apache.batik.dom.svg.SAXSVGDocumentFactory.createDocument(Unknown Source)
        at org.apache.batik.dom.svg.SAXSVGDocumentFactory.createDocument(Unknown Source)
        at org.apache.batik.transcoder.XMLAbstractTranscoder.transcode(Unknown Source)

I'm not sure what SAX2 driver is?  Which version of xerces contains it?

Any and all help appreciated.

regards,
Jody