When in design mode, the order of columns of a data grid table cannot be changed anymore by pressing and holding the left mouse button on the column's header and moving it to left or right.
A mouse pointer is shown making an "add item" appearance, and no movement of the column occurs. When the left mouse button is released, the mouse pointer changes back to ARROW with no column movement having happened.
As in earlier versions of LO, the user can change the columns' order by dragging.
Confirming also on master daily build from Jan 6th, 2013, Mac OSX 10.8.2.
It was not made clear that the initial reporter was referring to a Form containing a table grid control.
In LO 3.3.4, for example, I can create a form having such a grid control in Form Design mode, and move the field column order around. Even if I just open the form normally for browsing/data entry once it has been saved, I can also move the columns around.
However, in the master daily build mentioned above, this is no longer possible, either in Form Design mode or data entry/browse mode.
Clearly a regression. As it affects other OSes too, changing to All.
Putting Lionel on CC and upping priority.
*** This bug has been marked as a duplicate of bug 54021 ***