The new Octave 3.2.4 MinGW32 and gnuplot issues

[Tribo Laboy]

Hello!

I am having a problem with the new Octave windows binary. I downloaded
and installed. Then at the octave command line:

x = 0:0.1:12; y = sin(x);plot(x,y)

produces nothing.

in this way it produces a plot:

backend('gnuplot')
x = 0:0.1:12; y = sin(x);plot(x,y)

however the plot window shows the hour glass when rolling the mouse over.

issuing these commands works, but only after calling the next command
the previous is executed

xlabel('Time')
ylabel('Amp')
title('My Plot')

I am not yet willing to classify this as a bug, but clearly something
is changed from the previous version. How to work this around?

Regards.