If you want to translate the manual, great! It could come in handy.
I finally found the time to do this.
And here it is... in pictures.
Simply follow the numbers... and I would like to know what you get at number 
1. Activating the safe driver (see Eingeschränkte-Treiber-einschalten.png
2. Remove packages. (see Pakkette-entfernen.png
) and "nicht markieren" = do not mark these
3. Install proprietairy driver. (see Proprietären-Treiber-verwenden.png
4. Activate proprietairy driver. ( see Proprietären-Treiber-einschalten.png
I can see in your picture that the xorg-video-nvidia-current-260.19.29 is detected/activated by the Yali script in P2011.
As the xorg-video-nvidia96 is detected/selected in the German forum
, I would like to know the result of
lspci | grep VGA
or with no result
on a console.
This to see if there is a ID difference between the two nVidia GeForce 6100 cards.