problem with right blocs

Hello

This theme is really nice but if you try to add a new bloc on the right side, this bloc goes underneath the main bloc when on a subcategory. It's funny because when you're inside the article, the new bloc, and navigation bloc goes back on the right place.

Anny idea to fix this ?

you can see an eg at www.bnt.fr/drupal and click on the first primary link (... et nouvelles technologies).

Thanks a lot

First of all, thanks for the wonderful theme.
I've adapted the 5.x-1.x-dev version and created a 970px "widescreen edition". This gives the content extra 200px and solves the problem for me.
It is attached to this comment and also available at:
http://www.h3ndrik.de/files/CristalX4Drupal_widescreen.tar.bz2

note: the "widescreen edition" does not change the behavior of the right block! changes only apply to two "width" values in style.css and most of the pictures.