changing intro of a list

Hello,

I am a majordomo-newbie and looking for a solution of my problem:

1. My ISP provides majordomo but NO support for it

2. As I am in Germany I want to set up a special intro for my lists
   (most of the potential users won't be able to communicate in English).

3. I know the command to change the intro:

    <newinfo> <list> <password> ...

BUT even after changing the intro new subscribed members get a kind
of DEFAULT-INTRO with my intro attached AT THE END.

MY QUESTION:
Is there a possiblity to configure majordomo (i.e. by changing the 
config-file) so that this DEFAULT-INFO disappears? 

Again: My ISP doesn't provide any support, and so I am not able to
make changes on the server-side.

Thank you very much and have a nice Christmas

Roman