My default .emacs has the following hooks for tex-mode: (add-hook 'TeX-mode-hook 'turn-on-auto-fill) (add-hook 'TeX-mode-hook 'ispell-minor-mode) (add-hook 'TeX-mode-hook '(lambda () (setq tab-width 8))) (add-hook 'LaTeX-mode-hook '(lambda () (latex-math-mode))) Funny things happen when editing LaTeX source, however. For example, typing the sequence (when editing a latex file) "{\address 503 dgfd dfgdfg \\ sdfsf 1V9" (just typing everything within the quotes, not the quotes themselves, including the newline, and the indent is produced by a tab). The cursor should now be directly after the number nine. Press space. Instead of advancing the cursor and inserting a space, the cursor backs up to before the 9 and then inserts a space. VERY annoying when typing. In fact, for certain key combinations, there is no way to stop it. Sometimes to append text to a line you have to begin typing on the next line, and then join the lines by using "backspace"! Funny - I wrote a 150 page thesis using this same latex mode under RHL42 and the emacs stuff worked flawlessly...
After installing a fresh install of 5.2 to a test machine, ran emacs after adding to config to .emacs file, entered Latex mode, and then proceeded as instructed by bug report. I could not get this to fail as reported