Mac - problem with plotting

[Andrew Gibb]

Hi,

I can't seem to plot. I've just installed Octave using Homebrew on Mac 
OS Mavericks. If I do:

> x = linspace(0,5);
> plot(x, sin(x))

I get

gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420  font 
"*,6" dashlength 1
                      ^
         line 0: unknown or ambiguous terminal type; type just 'set 
terminal' for a list

However,
octave:3> set terminal
error: invalid conversion from string to real N-d array
error: set: expecting graphics handle as first argument

Which I guess is not what I should see.

It is suspicious that the error message begins "set terminal aqua" 
irrespective of the value of GNUTERM. The result is the same for GNUTERM 
set to qt, aqua, or X11.

The results are the same in the gui, or running Octave from a terminal 
prompt.

I have installed aquaterm via the dmg from sourceforge, and homebrew has 
picked up the gnuplot dependency.

Any ideas what's wrong here?

Thanks

Andy