[NTG-context] header/footer in toc

[jbf]

I notice that when I use

\definehead
   [tochead]
   [title]
\starttochead[title={Contents}]
   \placecombinedlist[content]
\stoptochead

I am getting header and footer still (not on the first page, but on 
following pages - the TOC runs into several pages). How can I prevent 
that happening, or more specifically, could I prevent just the header 
but leave the footer (page number)?

I tried using \startmakeup but that ruins the layout of my TOC. I also 
tried adding [header=empty] to my combinedlist setup: \setupcombinedlist 
[content][header=empty] but that didn't work either. What am I missing?

Julian