[Plugin: NextGEN Gallery] I don’t want any resizing

How do I edit the code in thickbox.js or thickbox-pack.js so that the image isn’t resized at all? Changing the numbers in the admin panel from 0 x 0 to 1000 x 1000 has no effect for me it seems. I’d like it so that the popup is the same size as the “full size” link.