[TxMt] Latex Config and backward compatibility questions

[Mark Eli Kalderon]

> The keep log window open attempts to replicate most of the  
> functionality of
> the old ERRLVL environment variable with less confusion.  So if you  
> have the
> box unchecked the window will still stay open if you have errors or
> warnings.  Unless you are using the built-in viewer in which case  
> having the
> box unchecked will cause the pdf to replace the log in the window  
> even if
> you have warnings.
>
> Yeah... Writing that out reminds me exactly how confusing that is.   
> I wish
> there were a simple yet obvious way to cover all those bases.

OK, works as designed, if not as expected.