It appears that galleries with name written in a foreing language (in my case greek) contained in albums, are not displayed. My problematic site is here First gallery with link http://acapella.gr/φωτογραφιες/nggallery/photos/old-greek-cinema/ is working correctly while the second gallery with link http://acapella.gr/φωτογραφιες/nggallery/photos/συναυλιακές/ is not working.
What's happening is that, you click your gallery and the same page (albums initial) is displayed again. I guess that the plugin fail to "analyze" the url with a foreign language in it, so my guess is that somewhere you are not playing with utf rules :)
Please inform me if this is the problem and if you will fix it in next version. Thanks for your interest and keep up the good work :)