> The printing system used by your Mac is called CUPS. cups-pdf is a > driver that interfaces between the pdf print system installed on your > Mac and the CUPS print system so you can print pdf files from programs > running in Wine. > Wine uses the IPP protocol to send print jobs to Wine. Under Linux this requires that the CUPS server must publish the print services it offers and accept Internet print jobs or Wine can't find it, even if its running on the same machine. This probably applies to OS X as well. Martin