DHTMLXGrid : Sorting icon is not display on header of grid

Hii,
I am using DHTMLXGrid, and want to display sorting icon (i.e ascending and descending arrow) on click of my grid header.
I using grid.setSortImgState(true, ind, direction); for this but my icon is not display. Is there any way to display it…?
Please let me know.

Thanks,
Ashwini

Unfortunately the problem cannot be reconstructed.
setSortImgState() method works well for me:
snippet.dhtmlx.com/324af529d