private bool SetLocation(Point location)
        {
            if (this.HorizontalOffset != location.X || this.VerticalOffset != location.Y)
            {
                this.HorizontalOffset = location.X;
                this.VerticalOffset = location.Y;
                return true;
            }
            // added the following 5 lines to trigger the popup to recalculate it's location
            else
            {
                this.VerticalOffset++;
                this.VerticalOffset--;
            }
            return false;
        }