Am 02.09.2013 um 17:00 schrieb hwitloc@gmail.com:

> I found the file, tabl-tbl.mkiv, here:
> 
>   /usr/local/texlive/2013/texmf-dist/tex/context/base/tabl-tbl.mkiv
> 
> I insert the line you said that was missing at line #721.
> 
> But, it did not change anything.  Does this file need to be compiled or anything?
> I am not familiar with the deeper workings of ConTeXt code yet.

You have generate a new format file where all source files are stored in a single file.

When you type "context --touch --expert" on the command lines context
generates a new format file when you process your document the next time.

Wolfgang