kristoz

Is it working on earlier versions of WordPress for you? It is working fine for me on WP 3.7.1.
Are you using custom theme? Do you see the Responsive Gallery css and Javascript files loaded in your example pages? Are you using any caching or other plugins?

Hi, I just had the same issue – all thumbnails were pointing to the respective “large” version of the image (e.g. 1024xYYY), instead of full size.
I managed to solve it by editing the Plugin responsive-gallery-grid/gallerygrid.php file on line 143:
change:
$info = wp_get_attachment_image_src( $mid, 'large' );
to
$info = wp_get_attachment_image_src( $mid, 'full' );

The same for me – but also it isn’t working for single pictures (try 1024×768). It works fine when browser is in Fullscreen mode or resized smaller.
Has anyone found a solution for this?