[NTG-context] Why \goto not wok in ConTeXt in Win7

Hi, everyone , I use the newest ConTeXt in Win7 , the version information as follow mtx-context | main context file: d:/context/tex/texmf-context/tex/context/ba se/context.mkiv mtx-context | current version: 2011.05.06 16:52 When I use goto in my document , it does not work, like the following, can anyone help me. Thanks I use context --mode=screen test to compile the document \starttext \title[content]{mulu} \placecontent \chapter{One} \setuppagenumbering [style=\tfx, location=] \startmode[screen] \switchtobodyfont[8pt] \setupfootertexts [{haha}][{\goto{back}[content]}] [{\goto{back}[content]}][{haha}] \stopmode \input knuth \chapter{Two} \input knuth \chapter{Three} \input knuth \stoptext