Problems plotting on Mac OS X 10.4

[Norm Hecht]

Hello,

I've found two problems using Octave on my new Intel Mac.

First, I'm having a problem with the figure command: I get this error  
after
typing "figure" at the octave command prompt.

dyld: Library not loaded: /usr/X11R6/lib/libX11.6.dylib
  Referenced from: /usr/local/libexec/gnuplot/4.0/gnuplot_x11
  Reason: image not found

Second, when I try to use the print command to send the plot to
a pdf, I get this:

sh: line 1: kpsexpand: command not found

gnuplot> set term pdf;
                  ^
         line 0: unknown or ambiguous terminal type; type just 'set  
terminal' for a list

warning: in /usr/local/share/octave/2.1.73/site/m/octave-forge/plot/ 
gget.m near line 55, column 3:
warning: connection to external plotter (pid = 6898) lost --
warning: please try your plot command(s) again
warning: broken pipe -- some output may be lost
error: gnuplot not responding
error: evaluating if command near line 57, column 5
error: evaluating while command near line 55, column 3
error: called from `gget' in file `/usr/local/share/octave/2.1.73/ 
site/m/octave-forge/plot/gget.m'
error: evaluating assignment expression near line 134, column 12
error: called from `print' in file `/usr/local/share/octave/2.1.73/ 
site/m/octave-forge/plot/print.m'
error: near line 35 of file `/Users/NKH/Documents/Academics/IMU  
Project/IMU_base/ap_data/airframe_alt_v_plot.m'


Here are the version numbers:

Octave 2.1.73 (i386-apple-darwin8.5.3).
OS X 10.4.6
AquaTerm v1.0 (1.0)
gnuplot version 4.0, patchlevel 0
X11 ? (I can't find it--is this part of the problem?)

Thanks for your help!

Norm Hecht
Westminster, CO