Hi list, I have a Linux box running RHEL5. It comes with GNU Emacs 21.4.1. For various reasons, it's hard for me to upgrade it to the current Emacs 23.3. I'm wondering if the current ESS (version 5.13) will work with my Emacs 21.4.1? If not, which older version of ESS I have to download and is the installation process the same? Thanks! ...Tao