[NTG-context] Pagenumbers doublesided

Hi, I can’t get simple pagenumbers starting right-left-right-etc. This minimal example results in middle pagenumbers (ConTeXt ver: 2012.04.19): ------------------------------------------------------------------- \setuppagenumbering [ alternative=doublesided, location=marginedge ] \starttext \dorecurse{20}{\input knuth \par} \stoptext ------------------------------------------------------------------- This solution doesn’t work for me (How to used it? – I copied the code in my preamble): http://archive.contextgarden.net/message/20120202.175424.41cbe6f3.en.html#co... TIA!