Embedded fonts on fop+cocoon2

[Fastweb]

please replay to [EMAIL PROTECTED]   Help me, i use cocoon2 to make a PDF. I create a xml file with a servlet and i use FOPSerializer to convert, using a xslt configuring a <user-config> file, but i have on apache log this message:   [fop] HttpProcessor[8180][4]/MessageHandler: unknown font Trebuchet,normal,normal so defaulted font to any.   I've already fixed the problem of user-config path files, i have put absolute path or the relative path starting from $TOMCAT_HOME   How i can solve it?