Ok, thanks, didn't notice that grouping and frozen columns doesn't work together – will work it some way out.
Got another problem tho i didn't notice before – when i use the code above the last row wont display. It disapears when I call
jQuery(“#list”).trigger(“reloadGrid”);
And i have to use this because when without it only part of the rows get grouped.
Now i have a full grid with footer, scrolling and grouping nicely, just without the last row…