Need help with DocBook for Net_DNS documentation

I apologize for my ignorance regarding DocBook. I am trying to document my Net_DNS project and I'm having difficulties. I'm modeling my documentation after the Net_Server documentation. Since I have "sub-classes," I'm not sure exactly how to add them into the docs. I keep getting this error: /usr/bin/openjade:./en/package/networking/net-dns/net-dns-resolver/query.xml:2:64:E: document type does not allow element "refentry" here I've tried modifying the Net_Server docs to simplify what's going on there, but it seems to work fine while my same style document appears to be problematic. Obviously I'm doing something wrong, but I can't figure out what it is. If someone could point me in the right direction, it would be incredibly helpful. The currently bad documentation is in CVS.