[ESS] hitting return won't move the cursor down

[rodney sparapani]

>> (M-x emacs-version)
>> XEmacs 21.4 (patch15) "Security Trough Obscurity" [Lucid}
>> (powerpc-apple-darwin7.4.0) of Fri Jul 16 2004
>
> Thanks Tiago; this is very helpful.
>
> You've found a bug in the newly introduced defun ess-do-autofill,
> clearly from the backtrace.  The variable enable-multibyte-characters
> exists in Emacs but not XEmacs.  I am copying this to Kurt, author of
> ess-do-autofill to see if he can pursue this on XEmacs.
>
> Yet another case where Emacs v XEmacs bites us...
>
> Stephen

Tiago:

Actually, I did test it on XEmacs, but it was probably 21.4.17.  So, 
upgrading should fix
your problem.  Otherwise, you might be able to do something like this 
before
you M-x R:

(setq enable-multibyte-characters nil)

Thanks, Rodney