[NTG-context] Still confused about \setuplayout

Hi, Taking S6 = 600pt wide x 450pt heigh for example... \setuppapersize[S6][S6] \showframe \showsetups \setuplayout[topheight=15pt, headerheight=15pt, footerheight=15pt, bottomheight=15pt, leftedgewidth=0pt, leftmarginwidth=0pt, rightmarginwidth=0pt, rightedgewidth=180pt] \starttext testing \stoptext How come the showframe and showsetups printouts don't correspond to the \setuplayout settings ? Thanks, Alan