[pstricks] Transparency not working here.

[John Culleton]

I have been away from pstricks for a while. I tried to get the transparency to 
work but obviously I am doing something wrong, or else don't have all the 
components. First I downloaded the new pstricks.tex 1.16b as cited in HVs 
recent posts. Then I tried my test file (below) it in both tex and pdftex. 
Here is my code, cribbed from HV of course:

\pdfoutput 0
\input pstricks.tex
x
\vskip 3in
%\begin{pspicture}(5,5)
 \psset{fillstyle=solid}
 \psframe[fillcolor=red](0,1)(3,4)
 \psframe[fillcolor=blue,opacity=0.7](2,2)(5,5)
 \psframe[fillcolor=green,opacity=0.7](1,0)(4,3)
 \pscircle[fillcolor=cyan,
 opacity=0.5](1.5,3.5){1.25}
% \end{pspicture}
\vfil
\bye

The cyan circle is slightly transparent but has strange bands across it.  The 
other colors show no transparency at all.  This is when viewed in xpdf and 
kpdf. 

In acrobat Reader 8 there is no transparency at all.

I used dvips and then ps2pdf to get to a pdf file. My dvips is  
version 5.96. 
Do I need something else?
-- 
John Culleton