[OS X TeX] LaTeX won't format emph

[Alain Schremmer]

On Feb 1, 2015, at 2:28 PM, Herbert Schulz wrote:
>
> Sorry about that. But I see no problems with those examples? What  
> was the code to produce those examples so I can figure out what I  
> was (not)supposed to see?

The code is absolutely straightforward, things like the minimal  
example I said earlier worked---and still does

	\documentclass[11pt]{book}
		\usepackage[usenames,dvipsnames]{xcolor}	

	\begin{document}

	\colorbox{yellow}{Some Roman text}

	\colorbox{yellow}{Some Roman text}

	\colorbox{yellow}{\emph{Some Roman emphasized text}}


	\colorbox{yellow}{\textsf{Some sansserif text}}

	\textsf{\emph{Some emphasized sansserif text}}


	\textbf{Some bold text}

	\textbf{\emph{Some emphasized bold text}}

	\end{document}

Even though, upon closing .tex, the pdf is fine, I have the correct  
LaTeXsample4, upon just opening the .tex file, that is _*without  
typesetting*_ it, I now get LaTeXsample3: (@ Sharpe, so, in this case,  
I have no console.)

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Then, after typesetting the just re-opened file, I bet the same,  
correct LaTeXsample 4


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Also, occasionally, I also get weird heading as in LaTeXsample5:


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Re-typesetting, invariably gives a correct pdf. At least so far.

Bewildered regards
--schremmer