Re: Emacs 'destroys' latex files

[Pseudo]

Dear Maarten,

Thank you for your reply. In fact, my emacs does not seem to know
latex-preview. I used the testfile you suggest

> \documentclass{amsart}
>    \renewcommand{\AA}{\mathbb A}
>  \begin{document}
> \[
> \AA
> \]
> \end{document}

it produces the following behaviour: the \AA inside the document
environment is visible as \AA, the first one in the header is displayed
in this strange form A with an o on its head.

Is there a 'logging' system in emacs that tells me what modules, parts,
whatsoever are run when opening a document? That would be a hint where
to search for my problem ...

Here is my .emacs file. Its mainly a collection of things I found
somewhere. And: on a much older version of debian / emacs it worked
quite well. Hope posting all these lines helps in understanding what I
messed up.
At least I don't see any strange parts in it.


(custom-set-variables
 '(case-fold-search t)
 '(current-language-environment "German")
 '(global-font-lock-mode t nil (font-lock))
 '(load-home-init-file t t)
 '(text-mode-hook (quote (turn-on-auto-fill text-mode-hook-identify))
t)
 '(transient-mark-mode t))
(custom-set-faces)

;; -------------------- font lock mode
(cond ((fboundp 'global-font-lock-mode)
;; Turn on font-lock in all modes that support it
(global-font-lock-mode t)
;; Maximum colors
(setq font-lock-maximum-decoration t)))
;; ---------------------

;; --------------------- AUC-TEX
(setq TeX-auto-save t)
(setq TeX-parse-self t)
(setq-default TeX-master nil)
;; ---------------------

;; --------------------- REF-TEX
(add-hook 'LaTeX-mode-hook 'turn-on-reftex)   ; with AUCTeX LaTeX mode
(add-hook 'latex-mode-hook 'turn-on-reftex)   ; with Emacs latex mode
(add-hook 'LaTeX-mode-hook 'LaTeX-math-mode)
(add-hook 'LaTeX-mode-hook 'flyspell-mode)

(setq reftex-plug-into-AUCTeX t
      reftex-enable-partial-scans t)

(setq reftex-use-external-file-finders t)
(setq reftex-external-file-finders
      '(("tex" . "kpsewhich -format=.tex %f")
        ("bib" . "kpsewhich -format=.bib %f")))
;; ---------------------

;; --------------------- PHP
 (setq load-path
      (append '("~/elisp") load-path ))
 (add-to-list 'auto-mode-alist '("\\.php3?\\'" . c-mode))

;; ---------------------- Start flyspell automatically
 (setq ispell-dictionary "british")
 (setq ispell-local-dictionary "british")
 (setq flyspell-default-dictionary "british")

(defun turn-on-flyspell-mode()
  (flyspell-mode t)
)

(add-hook 'latex-mode-hook 'turn-on-flyspell-mode)
(add-hook 'tex-mode-hook 'turn-on-flyspell-mode)
(add-hook 'html-mode-hook 'turn-on-flyspell-mode)
(setq minibuffer-max-depth nil)