[h-e-w] Emacs Calc and gnuplot under Windows

[steve]

My configuration:

   Windows 7 64-bit
   Emacs 23.2 in c:\emacs-23.2
   gnuplot 4.4.0 in c:\emacs-23.2\gnuplot
   .emacs contains:
     (setq calc-gnuplot-name "c:/emacs-23.2/gnuplot/binary/gnuplot.exe")

Emacs 23.2 runs very smoothly including M-x shell.
No issues starting/exiting shell and all emacs functionality is flawless.

Calc works very smoothly (C-x * c).

Gnuplot started manually from Windows explorer works smoothly.  (Terminal type
set to 'wxt')

However, gnuplot started from within Calc (g f) starts gnuplot (verified in task
manager/process explorer) but emacs becomes unresponsive until pressing C-g to
abort.  No gnuplot oriented buffers are created (electric-buffer-list).  After
waiting I understood that gnuplot integration in calc under emacs 23.2 was now
working.  Does anyone know if there is some additional configuration needed?

Thanks,
Steve