[NTG-context] How to set oldstyle numbering globally?

Hi, In my earlier MkIV minimal ConTeXt installation (dec.2010) I used the following in my preamble to activate oldstyle numbering: \usetypescript[schola] \setupbodyfont[schola,8pt] \definefontfeature [oldstyle] [default] [onum=yes] \addff{oldstyle} but this doesn't seem to work anymore in my recently installed minimal ConTeXt installation (ConTeXt ver: 2011.03.30 11:21 MkIV fmt: 2011.3.30 int: english/english). I use this installation with Debian 6.0 (Squeeze). Any idea what's wrong? Regards, Gerard Verhaag