Hi,
I've been trying to remove the header completely from a extendedDataTable.
I first removed the facet. I have a single column table:
<rich:extendedDataTable value="#{extendedTableBean.dataModel}" var="d" id="table"
width="580px" height="400px" sortMode="#{extendedTableBean.sortMode}"
selectionMode="#{extendedTableBean.selectionMode}">
<rich:column sortable="false" >
<h:graphicImage value="#{d.name}"/>
</rich:column>
</rich:extendedDataTable>