Quote Originally Posted by ben_golant View Post
For anyone who encounters the issues I reported - page jumping up and down and the wrong larger image being displayed when you add multiple images to a product - this is caused when you use - as you always should - your own custom template.

You need to copy from the Image Handler 2 /includes/templates/template_default/css folder : the css, jscript and popup_image_additional folders to your custom template.
This is just the answer I need.. Thanks a lot