The latest beta (ConTeXt  ver: 2009.05.28 14:36 MKII  fmt: 2009.5.28   
int: english/english) no longer processes my files: all I get is  
complaints about an extra \else. That is,

\definehead[LevelCHead][chapter]
\setuphead[LevelCHead][style={\tf 
\it},alternative=text,number=no,page=no]

\starttext

Hello world!

\LevelCHead{Hello world!} Donec placerat. Nullam nibh dolor, blandit  
sed, fermentum id, imperdiet sit amet, neque. Nam mollis ultrices  
justo. Sed tempor.

\stoptext

gets

! Extra \else.
\doplaceheadtext ...er #2}\makestrutofbox 0 \else
                                                   \setbox 0= 
\ifvertical \vbo...

\dodododoconstructhead ...{\finalsectionnumber }}}
                                                   \writesection {#1} 
{-}{#4}\...
l.9 \LevelCHead{Hello world!}
                               Donec placerat. Nullam nibh dolor,  
blandit sed...

?


Alan