I want to use octave with gnuplot under cygwin

[janus]

Hi!

I use octave under cygwin B19, windows98.

setting up octave is successful, and run properly under cygwin B19, but it is impossible to use gnuplot with octave.

whenever excute 'plot' command, following error message displayed.

'permission denied'

'broken pipe'

gnuplot is located on '/bin' directory, and set to 777 permision.

How can I do?

please answer...