Problem with grids and items spanning more than one column

[Mike Martin <redtux1 gmail com>]

I am using an embedded Gtk grid within a grid , which contains numerous
widgets
However if I have a widget that spans more than one column it messes up the
layout of all other widgets , which seem to position themseleves randomly
along the width of this widget, causing horribly jagged widget placement

Has anyone had this and come up with a solution

Row 1 Liststore spanning multiple columns
Row 2 liststore spanning 1 column and 2 rows , textview , then two buttons
the textview should line up on the right with the liststore in row 1