since installing “Image Store” when i upload images to a gallery i get no thumbnails at all in the backend just a blue box with a question mark. Also in the front end gallery I get the same with some of the thumbnails but here its not always the same thumbnail, if you refresh the page it will be a different set of thumbnails. If you click on the blue box it does bring up the image in lightbox and also if I add media to a page via NextGen galley or straight to a page via the standard WP upload I don’t have this problem accrue.

Any ideas???