[XeTeX] pstricks / pst-labo and xelatex

[Michael Ring]

Dear all,

I have a problem using pst-labo with XeLaTeX.
Here is a minimal example:

\documentclass{minimal}
\usepackage{pstricks,pst-labo}

\begin{document}
\begin{pspicture}
\pstTubeEssais
\end{pspicture}
\end{document}

I get the error message I posted below. A PDF is produced, but only  
the "liquid" in the tube is rendered, not the tube itself.
It works fine with latex->dvips->ps2pdf, but I prefer using XeLaTeX  
for several reasons.
I have already added the -dNOSAFER option in dvipdfmx.cfg and made the  
gs link point to gs-noX11, but the problem persists.

By the way: I´m using MacTeX 2013 on Snow Leopard, and it used to work  
with earlier versions of MacTeX.

What may be the problem?

Thank you very much in advance,
Michael




Error: /undefined in tx at TextPathDict
Operand stack:

Execution stack:
    %interp_exit   .runexec2   --nostringval--   --nostringval--    
--nostringval--   2   %stopped_push   --nostringval--    
--nostringval--   --nostringval--   false   1   %stopped_push   1900    
1   3   %oparray_pop   1899   1   3   %oparray_pop   1883   1   3    
%oparray_pop   1771   1   3   %oparray_pop   --nostringval--    
%errorexec_pop   .runexec2   --nostringval--   --nostringval--    
--nostringval--   2   %stopped_push   --nostringval--
Dictionary stack:
    --dict:1168/1684(ro)(G)--   --dict:0/20(G)--   --dict:116/200(L)--
Current allocation mode is local
Current file position is 627
GPL Ghostscript 9.07: Unrecoverable error, exit code 1

** WARNING ** Filtering file via command -->rungs -q -dNOSAFER  
-dNOPAUSE -dBATCH -dEPSCrop -sDEVICE=pdfwrite -dCompatibilityLevel=1.5  
-dAutoFilterGrayImages=false -dGrayImageFilter=/FlateEncode  
-dAutoFilterColorImages=false -dColorImageFilter=/FlateEncode  
-sOutputFile='/var/folders/Lz/LzZojHfrHr8dA1zNTzZscU+++TI/-Tmp-//dvipdfmx.iGTHjGYS' '/var/folders/Lz/LzZojHfrHr8dA1zNTzZscU+++TI/-Tmp-//dvipdfmx.seJM4EOH' -c quit<--  
failed.
** WARNING ** Image format conversion for PSTricks failed.
** WARNING ** Interpreting special command pst: (ps:) failed.
** WARNING ** >> at page="1" position="(134.445, 486.426)" (in PDF)
** WARNING ** >> xxx "pst:  tx at Dict begin STP newpath /ArrowA { moveto  
} def /ArrowB "
  )