Help about font ZapfDingbats

Hello.
I am very angry with the FOP processor.
In the FOP (0.18) examples there is a file "fonts.fo" that use ZapfDingbats 
font.
If I transform with the fop.bat command line in a pdf file I can see the 
ZapfDingbats well.
If I use the same xsl-fo instructions in my xsl file and use it for 
transform a xml file into pdf the fop processor
give me an error : "unknow font ZafDingbats" ,in the same machine in the 
same environment.
The xsl-fo instruction tha I use is
<xsl:template match="star">
         <fo:inline font-style="ZapfDingbats" >
                 &#73;
         </fo:inline>

</xsl:template>

In that way I got a character of the default font-family.

Please help me.
I attached the fonts.fo examples.
Thanks



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