Problem with tabs on Samsung Tablet

Hi BlueOwl

We have a problem with tabs and vertical view on big tablets.

Tabs OK in horizontal view (they look as in the desktop)
http://www.vocesenlared.com/wp-content/uploads/2013/10/tablet-horizontal.png

Tabs WRONG in vertical position (they look as in the desktop but broken):
http://www.vocesenlared.com/wp-content/uploads/2013/10/tablet-vertical.png

The view on mobile phones is different (stacked vertical) but perfect for us.

What look should be the correct one for big tablets? Desktop-like or Phone-like?

We need to fix this since a lot of our clients use big tablets.

We are on Aqua version 1.7. Solved in 2.0?

Any help would be much appreciated,

Javier