On Sat, 2012-07-07 at 06:16 +0200, Wolfgang Schuster wrote:
> Do you have more than one installation of the context suite on your system
> and you’re making the changes in the wrong tree (you can see the path
> for the used files on the command line when you generate the format).

I have as far as I know only one installation and that is the ConTeXt
debs from Adam's PPA. 

$ context --version

resolvers       | resolving | loading configuration file
'selfautodir:/share/texmf/web2c/contextcnf.lua'
resolvers       | resolving | loading configuration file
'/usr/share/texmf/web2c/contextcnf.lua'
mtx-context     | ConTeXt Process Management 0.60
mtx-context     |
mtx-context     | main context
file: /usr/share/texmf/tex/context/base/context.mkiv
mtx-context     | current version: 2012.07.04 23:48

-- 
Kip Warner -- Software Engineer
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http://www.thevertigo.com