Hi, #+BEGIN_COMMENT Some text #+END_COMMENT The above code is not working on my desktop while it runs without any error on my laptop. I have same .emacs set up for both desktop and laptop. I am getting the following error message. byte-code: unbalanced begin/end_comment blocks with #("#+BEGIN_COMMENT " 0 15 (fontified nil font-lock-fontified t) 15 16 (fontified nil font-lock-fontified t)) Thanks. Following is the corresponding part in my .emacs (custom-set-variables ;; custom-set-variables was added by Custom. ;; If you edit it by hand, you could mess it up, so be careful. ;; Your init file should contain only one such instance. ;; If there is more than one, they won't work right. '(TeX-PDF-mode t t) '(TeX-source-correlate-method (quote synctex)) '(TeX-source-correlate-mode t) '(TeX-source-correlate-start-server t) '(TeX-view-program-list (quote (("Okular" "okular --unique %o#src:%n%b")))) '(TeX-view-program-selection (quote ((output-pdf "Okular") ((output-dvi style-pstricks) "dvips and gv") (output-dvi "xdvi") (output-html "xdg-open")))) '(org-modules (quote (org-bbdb org-bibtex org-docview org-gnus org-info org-jsinfo org-irc org-mew org-mhe org-rmail *org-special-blocks* org-vm org-wl org-w3m))) '(show-paren-mode t)) (custom-set-faces ;; custom-set-faces was added by Custom. ;; If you edit it by hand, you could mess it up, so be careful. ;; Your init file should contain only one such instance. ;; If there is more than one, they won't work right. '(default ((t (:inherit nil :stipple nil :background "white" :foreground "black" :inverse-video nil :box nil :strike-through nil :overline nil :underline nil :slant normal :weight normal :height 98 :width normal :foundry "unknown" :family "Liberation Sans"))))) ----------------------------- *Sanjib Sikder *Ph.D. Fellow Chemical Engineering IIT Bombay* *