Upgrade didnt solve the problem. I think that Jquery from WP has a conflict with jquery.ui.autocomplete.min.js from Nextgen plugin - in firebug console there is many error when I try to list some previewpic in window album edit. I add in jquery.ui.autocomplete.min.js function Jquery() - so the errors dont show again - in firebug console script autocomlete work when i write some words but no previepicture are listed. But for me is not problem because I add previepic in base - I have 10 albums (If I add a new one simple add previepic in phpmyadmin). I spend a lot of time to resolve this strange bug and nothing work for me. I have one question. I want to add photo tag for all pictures viewed in imagesbrowse (I know that is hack - list function nggtagcloud like wp tagcloud but this function shows all tags what we have in base) - I want to show the list tag only this one pictures. Any sugestions or links?