[pdftex] hyperref URL link and AR7

[James W. Haefner]

I realize this is probably offtopic, but I'm hoping for a pointer to a
solution.  I use pdfscreen and hyperref to create a presentation to be
viewed by individual readers (not projected on a screen) that contains a
link to an external website.  A fragment of the code is:

\documentclass{report}
...
\usepackage[screen,panelright,sectionbreak,chocolate]{pdfscreen}  
\usepackage[display]{texpower}
%
\begin{screen}
 \hypersetup{pdfpagemode=FullScreen,pdfnewwindow=false}
 \margins{.65in}{.65in}{.65in}{.65in}
 \screensize{6.25in}{9in}
 \setlength{\topmargin}{-.5in}
 \def\pfill{\vskip6pt}
\end{screen}
...
\newcommand{\cdurl}{\href{http://www.myurl.net/index.html}
{the external webpage}}
...
\begin{document}
Click on \cdurl for more information.
\end{document}

In my Linux (Ubuntu), the link works correctly in xpdf ver. 3.0 (brings
up Konquerer and displays the website), and in Adobe Reader prior to ver
7.  However, in AR7, I get this message:

"The plug-in required by this 'URI' action is not available. Information
about the  missing plug-in may be available on Adobe's website."

I could find nothing on the website, and a plug-in for the reader is not
a good solution for me since it requires individuals to (apparently)
install another piece of software.   What am I (now) doing wrong in my
pdflatex code?  Can others duplicate this behavior on some form of
linux?

hyperref version is:   2003/01/22 v6.73n 


Thanks,
Jim Haefner