reRender in nested rich:datatable does not work

[redhattrip]

I am using following stack:

     - JBoss 6.0 M2

     - Seam 2.2.1.CR1

     - RichFaces 3.3.3-CR1

     - mojarra-1.2_08-FCS

Here is the facelet code snippet, all I would like to do is to refresh (or reRender) the order for which a new orderline has been added.

        <rich:dataTable id="tblId1" rows="10" var="order" value="#{orders}">   

            <rich:column>

                <h:form id="formId1">

                    <a4j:commandLink focus="newOrderline" ajaxSingle="true">

                        <h:outputText value="Add New Orderline"/>

                    </a4j:commandLink>

                    <a4j:outputPanel id="pTblId">

                          <rich:dataTable id="tblId2" var="line" value="#{order.orderlines}" rendered="#{order.orderlines.size() != 0}">                          

                            <rich:column>                           

                                <h:outputText value="#{line.title}"/>

                            </rich:column>

                         </rich:dataTable>

                    </a4j:outputPanel>                   

                    <rich:panel>       

                        <h:inputText id="newOrderline" value="#{orderBB.orderLineTitle}" size="45"/>

                        <a4j:commandButton value="#{messages.addOrderline}" action="#{orderBB.createOrderLine}" reRender="tblIId1:0:formId1:pTblId"/>

                    </rich:panel>                                          

                </h:form>               

             </rich:column>

        </rich:dataTable>

I tried both 'tblIId1:0:formId1:pTblId' and 'pTblId' as reRender value but it does not refresh to show newly added orderline title.

Any thoughts or suggestions will be greatly appreciated.

Thank you,

Sundeep