Hi,
I love this plugin and have been using it for a long time on our blog platform (http://www.nirmaaan.com/blog). Today I have test run another plugin (GD Star Rating) and it appears that their JQUery calls conflict leaving the navigation plugin totally disintegrated at the top of the site. Would have been really great if there was a workaround so that both the plugins were simultaneously usable.
I have also mentioned this to the other plugin's forum (http://wordpress.org/support/topic/303916?replies=5#post-1186664).
Thanks again Ryan.
http://wordpress.org/extend/plugins/multi-level-navigation-plugin/