ess-mode 5.2.0; void-variable comint-last-input-end

[john.gavin at ubs.com]

Hi,

I am trying to upgrade to ESS 5.2.0 (from 5.1.24) 
http://article.gmane.org/gmane.emacs.ess.general/112
but when I start XEmacs and 
each time I send a line to the R process I get the error

(error/warning) Error in process filter: (void-variable
comint-last-input-end)

I dont have 'comint-last-input-end' in my init.el file
so I assume that it is something new in 5.2.0.
Has anyone else encountered this problem?

It tried to browse 
http://news.gmane.org/gmane.emacs.ess.general
for a solution without success.
(Is there a better way to search the archieves?)

Package: ess-mode 5.2.0
I am on Windows XP, running R 1.9.0 (patched).
Emacs  : XEmacs 21.4 (patch 6) "Common Lisp (Windows)" 
[Lucid] (i586-pc-win32) of Mon Dec 17 2001 on TSUNAMI

Regards,

John.

John Gavin <john.gavin at ubs.com>,
Quantitative Risk Models and Statistics,
UBS Investment Bank, 6th floor, 
100 Liverpool St., London EC2M 2RH, UK.
Phone +44 (0) 207 567 4289
Fax   +44 (0) 207 568 5352

Visit our website at http://www.ubs.com

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