[NTG-context] Why no page numbering here?

Question. With \definetyping[SQL][option=color,numbering=line,bodyfont=9pt] \defineoverlay[ifsqoverlay][\overlayfigure{IfSQ-overlay.pdf}] \setuplayout[leftmargin=10mm,rightmargin=0mm,footer=0mm,header=5mm] \setuppapersize[A4,landscape][a4,landscape] \setupbackgrounds[page][background=ifsqoverlay] \setuptyping[SQL][palet=colorpretty] \setuppagenumbering[location=inleft] \def\typeSQLfile{\typefile[SQL]} \starttext why do I not see page numbers? Has this to do with my margins (I need to use as much space on the page as possible)? Thanks, G