Hi, I have an Org file that contains a literal string of the form "str1\__str2". When I export it to Latex (for subsequently generating a pdf file), the generated .tex file contains unexpected (wrong) results. To illustrate this problem, I have tested the following 8 literal string: 1) str1\__str22) str1\\__str23) str1\_str24) str1\\_str25) str1\str26) str1\\str27) str1_str28) str1__str2 I have defined each of these 8 literal strings in 5 different ways, as shown below using the literal string of test example (1) above: Case (a) : str1\__str2 Case (b) #+BEGIN_EXAMPLE str1\__str2 #+END_EXAMPLE Case (c) \verb+str1\__str2+ Case (d) #+BEGIN_LaTeX str1\__str2 #+END_LaTeX Case (e) \begin{verbatim} str1\__str2 \end{verbatim} I find unexpected (wrong) results for the following cases: Example 1, Cases (c), (d), (e)Example 2, Cases (c), (d), (e)Example 4, Case (d)Example 7, Cases (c), (d)Example 8, Case (d) The attached file "Latex-export-output.pdf" gives the output in the .tex file for each of the above 8x5 = 40 cases. It also contains what I consider to be the expected output. Also attached is the Org file "Latex-export-problems.org" containing these test cases. I have tested all these test cases with and without the following option in the Org file:#+OPTIONS: ^:{} Except for Case 7(c), for all the remaining 39 cases, including or not including this option does not change the resulting .tex output. For Case 7(c), when this option is not used, the .tex file contains the following output: \verb+str1$_{\mathrm{str2}}$+ When the option is not used, the .tex file contains the following output: \verb+str1\_{}str2+ I gratefully appreciate your help in resolving this issue. Thanks and Best Regards, Sharad(sharad_shrestha@hotmail.com) ============================================================== Emacs : GNU Emacs 23.2.1 (i386-mingw-nt5.1.2600) of 2010-05-08 on G41R2F1Package: Org-mode version 7.5 current state:==============(setq org-log-done 'note org-remember-default-headline "Quick Notes" org-export-latex-after-initial-vars-hook '(org-beamer-after-initial-vars) org-speed-command-hook '(org-speed-command-default-hook org-babel-speed-command-hook) org-agenda-files '("~/.org/notes.org" "~/.org/JOURNAL.org" "~/.org/TODO.org" "~/.org/Personal.org" "~/.org/Molikpaq.org" "~/TODO.org") org-hook '((lambda nil (auto-fill-mode t) (setq fill-column 70) (setq fill-prefix nil))) org-metaup-hook '(org-babel-load-in-session-maybe) org-footnote-section nil org-after-todo-state-change-hook '(org-clock-out-if-current) org-export-blocks-postblock-hook '(org-exp-res/src-name-cleanup) org-export-latex-format-toc-function 'org-export-latex-format-toc-default org-tab-first-hook '(org-hide-block-toggle-maybe org-src-native-tab-command-maybe org-babel-hide-result-toggle-maybe) org-src-mode-hook '(org-src-babel-configure-edit-buffer org-src-mode-configure-edit-buffer) org-confirm-shell-link-function 'yes-or-no-p org-export-first-hook '(org-beamer-initialize-open-trackers) org-startup-indented t org-todo-keywords '((sequence "TODO" "FEEDBACK" "VERIFY" "MODIFY" "|" "DONE" "DELEGATED")) org-agenda-before-write-hook '(org-agenda-add-entry-text) org-default-notes-file "~/.org//notes.org" org-directory "~/.org/" org-babel-pre-tangle-hook '(save-buffer) org-cycle-hook '(org-cycle-hide-archived-subtrees org-cycle-hide-drawers org-cycle-show-empty-lines org-optimize-window-after-visibility-change) org-export-preprocess-before-normalizing-links-hook '(org-remove-file-link-modifiers) org-mode-hook '((lambda nil (org-add-hook (quote change-major-mode-hook) (quote org-show-block-all) (quote append) (quote local)) ) (lambda nil (org-add-hook (quote change-major-mode-hook) (quote org-babel-show-result-all) (quote append) (quote local)) ) org-babel-result-hide-spec org-babel-hide-all-hashes org-mode-reftex-setup (lambda nil (setq reftex-mode 1)) turn-on-font-lock) org-ctrl-c-ctrl-c-hook '(org-babel-hash-at-point org-babel-execute-safely-maybe) org-confirm-elisp-link-function 'yes-or-no-p org-export-interblocks '((lob org-babel-exp-lob-one-liners) (src org-babel-exp-inline-src-blocks)) org-occur-hook '(org-first-headline-recenter) org-from-is-user-regexp nil org-export-preprocess-before-selecting-backend-code-hook '(org-beamer-select-beamer-code) org-remember-templates '(("Todo" 116 "* TODO %?\n %i\n %a" "~/.org/TODO.org" "Tasks") ("Journal" 106 "* %U %?\n\n %i\n %a" "~/.org/JOURNAL.org") ("Idea" 105 "* %^{Title}\n %i\n %a" "~/.org/JOURNAL.org" "New Ideas") ("Molikpaq" 109 "* TODO %?\n %i\n %a" "~/.org/Molikpaq.org" "Tasks") ("MhaPuja" 112 "* TODO %?\n %i\n %a" "~/.org/mha-puja.org" "Tasks")) org-footnote-define-inline t org-export-latex-final-hook '(org-beamer-amend-header org-beamer-fix-toc org-beamer-auto-fragile-frames org-beamer-place-default-actions-for-lists) org-metadown-hook '(org-babel-pop-to-session-maybe) org-export-blocks '((src org-babel-exp-src-block nil) (comment org-export-blocks-format-comment t) (ditaa org-export-blocks-format-ditaa nil) (dot org-export-blocks-format-dot nil)) )