It appears that the CSS for dhx_point_left may be incorrect. When a popup is created to appear to the right of an object, the left pointer is not consistent with the other pointers. (note: The background-position for the left is set the same as dhx_point_top position.) Using -7px works nicely.
.dhx_point_left{
background-image: url(./imgs/images.png);
background-position: 0 -7px;
}
Thanks,
Kris