Thanks, that brings me a step closer. I am now getting: 
Error: e:\apps\gnuplot\bin\wgnuplot.exe E:\tmp\xhxbHAg9oN\plot: 256 at
+ C:/strawberry/perl/site/lib/Chart/Gnuplot.pm line 841.

[download]
I'm not sure what the 256 is yet, but there are many temporary directories and files created and destroyed along the way. I can break the program at various points to see what is happening.

Note: I used "set TMP=e:\tmp" to override placing the temporary files deep in my docs and settings folder.

Note: Strawberry perl stores copies of its CPAN modules in three places, using Windows "Find" revealed C:\strawberry\perl\site\lib\Chart\Gnuplot.pm to be the working version.

In reply to Re^2: Chart::Gnuplot dataset under Windows XP empty GIF by anthonyt
in thread Chart::Gnuplot dataset under Windows XP empty GIF by anthonyt

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