[Plugin: NextGEN Scroll Gallery] thumbs not working for nextgen image

Hi,
I’m using next gen for default images and getting can’t (adaptiveResize() on a non-object). If I use a WordPress library image it works fine. Has anyone come across this? Cheers. I’ve tried with and without ‘adjustImagesize: (boolean) adjust the imagesize’.
Thanks. D

http://wordpress.org/extend/plugins/nextgen-scrollgallery/