Hi Torben,

Torben Hoffmann <torben.lehoff@gmail.com> writes:

>     #+BEGIN: clocktable :maxlevel 2 :scope agenda-with-archives
>      :weekstart 7 :block thisweek :step day :fileskip0 :narrow 20!

       ^^^^^^^^^^

should be :wstart -- let us know if it works!

--
 Bastien