If the width of the grid is narrower than the displayed data so that it cuts the cell at the end of the rows in half, and the mouse moves out of the grid via the cut-off cell, then we don't get an OnCellMouseOut or OnMouseOut event fired.

Both events do fire if I move the scrollbar's thumb to the right, then exit via the cut-off cell on the left.

Any way to work around this problem?
--ed