fo:table Problem, not showing data

Hello 
I have a problem showing the data in a table from fo:table, without the
fo:table tags, it does work. I don't know exactly what is missing. 

Here is the sample code: 

    <xsl:template match="anwendungen">
        <!-- this is the code without fo:table (it does work)
        <xsl:for-each select="anwendung">
            <fo:block>
                <xsl:apply-templates/>
            </fo:block>
        </xsl:for-each>

        down here comes the code with a table, that is not working-->
        <fo:table background-color="#00ff00"
            padding-left="2px" padding-right="2px" padding-bottom="2px"
padding-top="2px"
            margin-left="0px" margin-right="0px" margin-top="0px"
margin-bottom="0px"
            border-color="#00ff00" border-style="solid"
            border-left-width="1px"  border-right-width="1px"
border-bottom-width="1px" border-top-width="1px"
            width="600pt">
            <fo:table-body>
                <xsl:for-each select="anwendung">
                    <xsl:sort select="bezeichnung" />
                    <fo:table-row font-weight="bold">
                        <fo:table-cell>
                            <fo:block>
                                <fo:block><xsl:value-of
select="."/></fo:block>
                            </fo:block>
                        </fo:table-cell>
                    </fo:table-row>
                </xsl:for-each>
            </fo:table-body>
        </fo:table>
    </xsl:template >

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