X11 function issues

hi,

I've got a MacBook Pro (intel) and am running OS 10.5.8 and need NCL/NCAR
Graphics to generate weather maps for a paper (revisions due next month).

am following the environment configuring instructions on
http://www.ncl.ucar.edu/get_started.shtml#SetUpEnvironment

and have discovered that a semi-dysfunctional X11 ... here are the
symptoms:

   1. when I click on the X11 icon, the icon bounces for a while and
*top*indicates two X11.bin running, then the icon stops bouncing, X11
doesn't
   open, and *top* still continues to indicate two X11.bin running
   2. both .bashrc and .bash_profile contain *export DISPLAY=:0.0; export
   DISPLAY={IP}:0.0; export DISPLAY=localhost:0.0*
   3. Matlab can open X11, however (and *top* indicates that X11.bin and
   Xquartz and quartz-wm & xinit are running)
   4. I am unable to open an X11 XTerm, even in Matlab's X11 (although
*top*indicates their presence)
   5. The 'About X11' GUI indicates that Matlab is opening XQuartz 2.1.6
   (xorg-server 1.4.2-apple33)
   6. when I go poking around I find that I actually have two versions of X
   7. the old version (X11R6) is softlinked to the new version (XQuartz)
   8. when I type *open /usr/X11R6/bin/X* or *open /usr/X11/bin/X* it hangs
   with '/usr/X11/bin/Xquartz ; exit;' and *top* indicates that X11.bin is
   running but I am unable to access it

questions are:

(1) am i having a problem with the DISPLAY variable?
when i invoke *host {drivename}* I get 2 IP addresses and 2 unknowns &
neither IP matches the one indicated by the GUI in System Preferences, which
is the one I used (I tried all 3). it would seem that my Mac is having an
identity crisis of sorts.

(2) should I install a newer version of XQuartz or will that mean I can't
use Matlab either? No plotting for me!?!
http://xquartz.macosforge.org/trac/wiki/X112.5.2

will be profoundly appreciative of any assistance
kirstie

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Received on Thu Jul 22 17:11:28 2010