On my website http://tinyurl.com/bo3tu9t (running on wp 3.5.1.) I am having trouble getting NextGen to work properly. No matter what I try the plugin keeps opening the images on a new blank page. In the plugin menu I have set the effect to thickbox, and looking at the code with firebug it should work.
I have tested the plugin with exactly the same options with another theme, and the plugin seems to work fine there.
What is going wrong here?