When using a MenuBar component as the content of a ice:column within an scrollable datatable: (scrollable="true" scrollHeight="Npx"), and when scrolling down in the table for while (have many items on it), it makes the menu bar popup to go off to the browser (top =0) making impossible to select an option of it.

This can be reproduce easily by doing the following:

<pre>

<f:view xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:ice="http://www.icesoft.com/icefaces/component">

<ice:outputStyle href="/xmlhttp/css/rime/rime.css" />
<ice:form>
<ice:panelGroup>
<ice:dataTable
                    value="#{myBean.productsList}" var="product"
                    headerClass="headerProductList" varStatus="row" scrollable="true"
                    scrollHeight="320px">
                    <ice:column>
                        <f:facet name="header">
                            <ice:outputText id="column1" value="Key" />
                        </f:facet>
                        <ice:panelGroup>

                            <ice:menuBar id="menuBar" orientation="horizontal">
                                <ice:menuItem value="My Menu" id="file"
                                    onclick="return false;">


                                    <ice:menuItem value="Click Me2" id="file2"
                                        onclick="return false;">
                                    </ice:menuItem>
                                    <ice:menuItem value="Click Me4" id="file4"
                                        onclick="return false;">
                                    </ice:menuItem>
                                </ice:menuItem>
                            </ice:menuBar>
                        </ice:panelGroup>
                    </ice:column>
                </ice:dataTable>
</ice:panelGroup>
        </ice:form>
</f:view>
</pre>