Getting a notice on a very standard installation right off the bat when setting it up. Appears on image gallery items. The file is node_gallery/node_gallery_api.inc
Notice: Undefined index: 37 in node_gallery_api_get_item_position() (line 832 of /modules/node_gallery/node_gallery_api.inc).
If I can determine anything else relevant I will add info here. Minor but worth filing. Thx.