cacute missing in PDF only

Hello,

I have a ć (cacute, ć) missing in PDF (not HTML or RTF).

This seems to be the error:

Oct 5, 2011 7:07:42 PM org.apache.fop.events.LoggingEventListener processEvent

WARNING: Glyph "?" (0x107, cacute) not available in font "Helvetica-Bold". 

If I go into LibreOffice, I can enter ć in Helvetica font and make it bold. (Is Helvetica-Bold something else?)

How should I work around this?

Thanks for your time and your help.

Regards,

Mark