Mozilla-1.7.5 + plugger-5.1.2 : nothing happens with pdf files ?!?

[Rob]

Hi

I have following ports installed on my FreeBSD
5-Stable system:
  mozilla-1.7.5_2,2
  plugger-5.1.2
  acroread-7.0.0

In Mozilla, Help->About Plug-ins, shows me a long list
of Mime types that are handled by plugger:

    File name: npplugger.so
    Plugger version 5.1.2 [...cut text...]
    Config file: /usr/X11R6/etc/pluggerrc-5.1.2
    Helper binary: plugger-5.1.2
    Controller binary: plugger-controller
    OpenOffice helper: plugger-oohelper

When I click on a pdf file, I can verify with the ps
command that plugger-5.1.2 indeed has been launched:

 plugger-5.1.2 2576,1,38,27262978,0,0,920,607 \
      acroread  -tempFile +useFrontEndProgram \
      -geometry +9000+9000  "$file"

The mozilla window is empty and has
"Running helper ..." in the bottom.
However, nothing happens after this.
No pdf file loaded, nothing!

Any idea what is causing the problem?
A problem in the plugger configuration file?
Or a problem with acroread-7.0.0?

Using plugger with, for example, realvideo files,
works fine.

Regards,
Rob.

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