I thank you Eric and Uwe for your help. Many thanks also to all the developers of emacs and org-mode. 

In fact I just spent two days in configuring my emacs24 and gnus. (Eric, I did not understand how worked your emacs24-starter-kit , which is a nice tool indeed). 

The last problem that I meet on my laptop is  an error message : smtp-server not defined , and , until now, I do not find how to fix it :(
(if someone has a suggestion, thanks in advance). 

My goal is to succeed to stay in emacs, for LaTeX as well as for emails, but I have to work again. Every help on LaTeX and emails via org-mode will be welcome. 


Best,

Jo. 



2013/5/15 Eric Schulte <schulte.eric@gmail.com>
Uwe Brauer <oub@mat.ucm.es> writes:

>>> "Eric" == Eric Schulte <schulte.eric@gmail.com> writes:
>
>    > Joseph Vidal-Rosset <joseph.vidal.rosset@gmail.com> writes:
>    >>
>    >> -
>
>    > A while back Org-mode switched its method of exporting latex equations
>    > to HTML.  Equations used to be exported as png images, however they are
>    > now exported as markup which may then be processed on the fly by
>    > client-side javascript.  Most mail readers do not allow javascript in
>    > html email, and I doubt that the required javascript headers are
>    > included in the mail html mime part.
>
>    > I don't know if it is currently possible to do the javascript
>    > pre-processing as part of the HTML export, but that would probably be
>    > the best solution in this case.
>
> Couldn't the old functionality (converting to png) be reactivated, at
> least optionally?? For me this change are bad news, since the feature
> (to export LaTeX math to something visible) is very important to me and
> even if this approach may have disadvantages, it seems to me more
> universal than the  javascript business.
>

Indeed the old latex->png functionality is still available, I just had
to update org-mime to work with the new exporter.  Export of latex to
attached png images should once again be working in the master branch of
the git repo.

Best,

>
>
> Uwe Brauer
>
>

--
Eric Schulte
http://cs.unm.edu/~eschulte