[pstricks] psplotDiffEqn: Compiles fine but postscript output is not shown

[Hernando Diaz Morales]

Hello everyone:
I am trying to simulate the solution to a 2nd order ODE using 
\psplotDiffEqn. The following code compiles just fine, but GSView 
crashes with the result.
Please help!

THE CODE:
\listfiles
\documentclass[12pt]{minimal}
\usepackage{amsmath}
\usepackage{pstricks}
\usepackage{pstricks-add}
\begin{document}
\psset{whichabs=0,whichord=1}
\psset{method=rk4,plotpoints=200,linewidth=0.5pt,linecolor=blue}
\psset{algebraic=true}
This is the differential equation whose solution is to be simulated
\begin{align}
     \dot{X} &=\left(1+X-Y\right)^2\left(1-X\right)-
     \theta\left(1-X+Y\right)^2X
             -2\eta\left(1-X+Y\right)\left(1+X-Y\right)X\\
     \dot{Y} 
&=-\left(1+X-Y\right)^2Y+\theta\left(1-X+Y\right)^2\left(1-Y\right)
             -2\eta\left(1-X+Y\right)\left(1+X-Y\right)Y
\end{align}
\psset{unit=8cm}
\def\rthe{1.05}
\def\reta{0.95}
\def\Func{(1-y[1])*(1+y[1]-y[2])^(2)-\rthe*y[1]*(1-y[1]+y[2])^(2)-2*\reta*y[1]*(1+y[1]-y[2])*(1-y[1]+y[2])|%
     
-y[2]*(1+y[1]-y[2])^(2)+\rthe*(1-y[2])*(1-y[1]+y[2])^(2)-2*\reta*y[2]*(1+y[1]-y[2])*(1-y[1]+y[2])}
\begin{center}
     \begin{pspicture}(-0.05,-0.05)(1.05,1.05)
         \psplotDiffEqn{0}{20}{0.8 0.2}{\Func}
     \end{pspicture}
\end{center}
\end{document}

THE FILE LIST

  *File List*
  minimal.cls    2001/05/25 Standard LaTeX minimal class
  amsmath.sty    2000/07/18 v2.13 AMS math features
  amstext.sty    2000/06/29 v2.01
   amsgen.sty    1999/11/30 v2.0
   amsbsy.sty    1999/11/29 v1.2d
   amsopn.sty    1999/12/14 v2.01 operator names
pstricks.sty    2008/11/26 v0.40 LaTeX wrapper for `PSTricks' (RN,HV)
pstricks.tex    2010/04/26 v2.05 `PSTricks' (tvz,hv)
pst-xkey.tex    2005/11/25 v1.6 PSTricks specialization of xkeyval (HA)
  xkeyval.sty    2008/08/13 v2.6a package option processing (HA)
  xkeyval.tex    2008/08/13 v2.6a key=value parser (HA)
   pst-fp.tex    2010/04/26 v2.05 `PST-fp' (hv)
   xcolor.sty    2007/01/21 v2.11 LaTeX color extensions (UK)
    color.cfg    2007/01/18 v1.5 color configuration of teTeX/TeXLive
    dvips.def    1999/02/16 v3.0i Driver-dependant file (DPC,SPQR)
pstricks-add.sty    2010/02/11 v. 0.14 package wrapper for 
pstricks-add.tex (hv
)
pstricks-add.tex    2010/03/12 v3.39 `PSTricks-add' (hv)
  ***********

THE ERROR REPORT:
AFPL Ghostscript 8.14 (2004-02-20)
Copyright (C) 2004 artofcode LLC, Benicia, CA.  All rights reserved.
This software comes with NO WARRANTY: see the file PUBLIC for details.
Displaying DSC file C:/Documents and Settings/Todos/My 
Documents/Biologia/Malaria/Biomat2010/TransVector.ps
Displaying page 1
Error: /rangecheck in --get--
Operand stack:
    0.0   --nostringval--   k0   1.0   1.0   --nostringval--   2
Execution stack:
    %interp_exit   .runexec2   --nostringval--   --nostringval--   
--nostringval--   2   %stopped_push   --nostringval--   
--nostringval--   false   1   %stopped_push   1   3   %oparray_pop   1   
3   %oparray_pop   1   3   %oparray_pop   1   3   %oparray_pop   
.runexec2   --nostringval--   --nostringval--   --nostringval--   2   
%stopped_push   --nostringval--   --nostringval--   --nostringval--   
--nostringval--   --nostringval--
Dictionary stack:
    --dict:1120/1686(ro)(G)--   --dict:0/20(G)--   --dict:116/200(L)--   
--dict:178/300(L)--   --dict:37/200(L)--   --dict:125/200(L)--   
--dict:13/20(L)--
Current allocation mode is local
Last OS error: No such file or directory

--- Begin offending input ---
  aload pop k0 { 2 div } forall addvect ylength array astore
/y exch def x dup dx 2 div add /x exch def /k1 Func { dx mul } forall
ylength array astore def exch dup aload pop k1 { 2 div } forall addvect
y astore pop /k2 Func { dx mul } forall ylength array astore def dup
aload pop k2 aload pop addvect y astore pop exch dup dx add /x exch
def /k3 Func { dx mul } forall ylength array astore def /x exch def
dup aload pop k0 aload pop k1 aload pop k2 aload pop addvect 2 mulvect
addvect k3 aload pop addvect 6 divvect addvect y astore pop } def /xy
{ y 0 get 227.62204 mul y RK 1 get 227.62204 mul } def   /ps at Exit false
def xy moveto  199 1 sub { /x x dx add def xy  -1.0 0 gt { dup abs
-1.0 227.62204 mul gt { moveto }{ L } ifelse } { L } ifelse  } ps at Exit
{ exit } if repeat ps at Exit not { /x x1 def xy  -1.0 0 gt { dup abs
-1.0 227.62204 mul gt { moveto }{ L } ifelse } { L } ifelse  } if
gsave 0.5 SLW 0 0 1  setrgbcolor  1. .setopacityalpha  0  setlinecap
stroke  grestore end

@endspecial 0
TeXcolorgray 0 TeXcolorgra
--- End offending input ---
file offset = 181924
gsapi_run_string_continue returns -101