I am trying to process a file using the ConTeXt minimals and MK II  
that now complains:
.
.
.
{/Users/alancbowen/Library/texmf/fonts/map/pdftex/context/tasgreek.map}
! Argument of \next has an extra }.
<inserted text>
                 \par
<to be read again>
                    }
<argument> ...{,\CCC:4:124 \CCC:4:126 \CCC:4:124 }
                                                   \hskip \datesignal  
\def \b...

\p!compareprocessaction ...commalistelement {#3}#2
                                                   \fi \fi
\next2 #1,->\p!doprocessaction {#1}
                                    \doprocesscommaitem
\processnextcommalist ...odoprocesscommaitem #4#5,
                                                   ]\relax \global  
\advance \...
...
l.29 F
       inally, I have supplied extensive footnotes and comments  
explicating t...

I have tried various things to locate the error but without success.  
Can anyone tell me what this error message means and where I should  
look to solve the problem?

I do have

\definetext[ArticleTitlePage][footer]
	[\tfx\AuthorName\hfill\currentdate\hfill{\tf 1}]

in my environment file, but this seems to be OK.

Many thanks in  advance.

Alan