Dear Bruce and Matt,

My first guess is that the culprit is anti-virus software running on
Ganesh's computer. I have seen other examples of parts of Demeter being
falsely identified as problematic and being removed, rendering the
Demeter programs unusable.

That said, on Ganesh's computer, the gnuplot executable should be in

C:\strawberry\c\bin\gnuplot\bin

Yes - I can locate it exactly at this path and the executable file does open from there.

There are some other conceivable ways to see this problem, but I am
placing my first bet on over-aggressive anti-virus software.

I did have McAfee. I uninstalled the program and restarted my computer and the problem still persists. It seems very much the same, im posting the most recent log-file.

***************************************