AucTeX problems on Mac OSX

[D. D. Brierton]

Using Mac OS X 10.2.6, Emacs 21.3.50.6, AucTeX 11.13, and teTeX (I'm not
sure which version, but a fairly up-to-date one).

I'm trying to set up Emacs and AucTeX on a friends iBook so that she has a
sane LaTeX authoring environment (and get plenty of support from all the
other people in her department who use Emacs and AucTeX on Linux and
Solaris boxes). Unfortunately, I don't know much about Macs. Everything
seems to be working okay, except that whenever I try and run a command on
the buffer I'm working on I get an "exited abnormally with code 127"
error.

So, say I open in Emacs her Thesis.tex, and then do Command -> "LaTeX
Interactive" I get the following a new window:

Running `LaTeX Interactive' on `Thesis' with ``latex Thesis.tex''

LaTeX Interactive exited abnormally with code 127 at Thu Jul  3 21:57:12

I'm guessing that either the default
/usr/share/emacs/site-lisp/tex-site.el needs to be tweaked for Mac OS X,
or that the TeX Command List needs to be customized.

Could someone please give me some pointers?

TIA, Darren

-- 
======================================================================
D. D. Brierton            darren@dzr-web.com           www.dzr-web.com
       Trying is the first step towards failure (Homer Simpson)
======================================================================