Bug in prosper when using `dot -Tps2 | ps2pdf'

Package: graphviz
Version: 1.10.20030915.0415-2
Severity: normal

Hi!

I have met a bug that involves many different components, and to tell
the truth I don't know who's the real culprit, nor could I swear
there's only one.

I'm shipping several files below:
- node.dot for the GraphViz package
- prosperbug.tex
- Makefile to run them all.

The problem is that the following slide:

	\begin{slide}{Bug}
	  \begin{multicols}{2}
	    Foo
	    \columnbreak{}
	    \includegraphics{node}
	  \end{multicols}
	\end{slide}

produces a correct ps file, but the pdf file has broken bounds (the
output is square).

The problem does not happen if one of the thing changes:
- using -Tps with dot instead of -Tps2
- not using a multicol in the slide
- using seminar instead of prosper
  (actually, the figure does not appear, but the output is not
  so severely broken).

The bottom line is that the following line output by dot -Tps2 (and
propagated by ps2pdf) kills the format in this precise configuration.

   [ /CropBox [36 36 97 89] /PAGES pdfmark

I have no idea whether this line is valid in EPS, but that would be my
bet.  That would make ps2pdf the real culprit?

/tmp % less =ps2pdf
#!/bin/sh
# $Id: ps2pdf,v 1.3 2002/02/21 21:49:28 giles Exp $
# Convert PostScript to PDF.

# Currently, we produce PDF 1.2 by default, but this is not guaranteed
# not to change in the future.
exec ps2pdf12 "$@"

Thanks!



-- System Information:
Debian Release: testing/unstable
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: i386 (i686)
Kernel: Linux 2.4.25
Locale: LANG=fr_FR, LC_CTYPE=fr_FR

Versions of packages graphviz depends on:
ii  libc6                     2.3.2.ds1-13   GNU C Library: Shared libraries an
ii  libexpat1                 1.95.6-8       XML parsing C library - runtime li
ii  libfreetype6              2.1.7-2.1      FreeType 2 font engine, shared lib
ii  libjpeg62                 6b-9           The Independent JPEG Group's JPEG 
ii  libpng12-0                1.2.5.0-6      PNG library - runtime
ii  libxaw7                   4.3.0.dfsg.1-4 X Athena widget set library
ii  tcl8.4                    8.4.6-1        Tcl (the Tool Command Language) v8
ii  tk8.4                     8.4.6-1        Tk toolkit for Tcl and X11, v8.4 -
ii  xlibs                     4.3.0.dfsg.1-4 X Window System client libraries m
ii  zlib1g                    1:1.2.1.1-3    compression library - runtime

-- no debconf information