It looks like you are referring to the lightbox popup? The original fix I gave you was for the : that shows up in the page itself. If you want to fix it for the lightbox popup, edit the galleries/grid_lightbox/index.php file. On line 59, there should be some code that looks like this (strlen($gallery['images'][$i]['title']) > 0 ? ':' : '') - replace the ':' with ''.