Hi Carsten, here is an update on the subject. I performed a another test with emacs 23.3.1 under cygwin X11. I see same behaviour as under WinXP.
Maybe I have to clarifiy what I did. So here is a step by step procedure. Inside an orgmode document do the following: Set =org-pretty-entities= to nil (setq org-pretty-entities nil) C-x C-e now type =ab_cdef= inside a LaTeX environment \( \). As a result I get: \( ab_{cdef} \) Now turn on =org-pretty-entities= (setq org-pretty-entities t) or C-c C-x \ and again type =ab_cdef= in an LaTeX environment. As a result I get: \( ab_{c}def \) Which is not what cdlatex doc says. I tested this with emacs-version 23.3.1 under cygwin 23.2 under WinXP 24.0.50.1 under WinXP Emacs started as posted in my pevious post. =emacs -Q= and minimal org-mode and org-cdlatex setup. org-mode Version: (org-version) release_7.9.1-138-geeb5b9 @ c:/daten/users/DE_hts2fe/git/org-mode/lisp/ I get the same results in all tree cases. I hope that clarifies what I ment originally. Sorry for not beeing clear. -- Bis neulich ... Thomas