I have the same problem. I’m getting this error:
Error: jQuery("#previewpic").nggAutocomplete is not a function
Source File: http://blog.hmnarchitects.com/wp-admin/admin.php?page=nggallery-manage-album
Line: 145
Here’s the link to the gallery, http://blog.hmnarchitects.com/portfolio/healthcare/the-childrens-mercy-hospital-clinics/. The first picture in the second row is the one that is giving me problems.
I have the same problem. I’ve found others with the same problem, but haven’t found a fix.