Gnuplot error in Octave

[Niner]

Hi,

I am a newbie to Octave. I use the binary files provided by Octave- 
Forge in my Mac OSX 10.5.1. I encountered a problem on plotting the  
graphics. When I tried to plot, the gnuplot was called and an error  
occur.

~[14:08] $ octave
octave-3.0.0:1> x=.1:.1:10;
octave-3.0.0:2> y=sin(x);
octave-3.0.0:3> plot(x,y)
gnuplot>set terminal aquax enhanced
                              ^
line 0: unknown or ambiguous terminal type; type just 'set terminal'  
for a list
...


This error occurred when I used commands in Terminal.app. I had  
installed Gnuplot 4.2.2 and AquaTerm 1.0.1. I think this error  
indicates that the "set terminal aquax" didn't work. I can plot  
figures under gnuplot by setting terminal to "aqua" when opening  
Terminal.app. There is no "aquax" in the gnuplot terminal list.  
However, if I open a X11 xterm window, I can run the octave commands  
successfully and get the plot to show in a separate window. How come  
there is no "aquax" error under X11 xterm? If I want to stay with  
Terminal.app, what can I do to fix the problem?

Any comment is appreciated. Thanks a lot for help.

I am using MBP, Leopard, Octave 3.0.



Niner