Grid: problem with horizontal scrollbar

Hi,

when I add soome rows to my grid the vertical scrollbar occurs - that's fine.
I would expect that the columns will use a bit less space to equalize the width of the scrollbar, but instead a horizontal scrollbar occurs - which is very very uggly.

You can see the same effect in the vaadin sampler:
1) go to http://demo.vaadin.com/sampler/#ui/grids-and-trees/grid/features
2) enter "as" in the filter field - nothing matches, so the table is empty
3) reduce the visible columns (only tha last 3 should left)
4) now remove the "as" from the filter field

You will see that the grid is filled and the vertical scrollbar occurs.

Now use the mouse to reorder 2 columns - everything is as expected now!

Do you have any suggestions how to solve this behavior?
 

Does noone have the same problem?

The problem still occurs with version 7.6.4 :(