I am having a long ongoing thread with them now. It's my only reason I'm not switching from my current provider yet. Every other one has a scalable gallery that changes based on browser size. As long as you upload at 1500 max on the long side, they should scale. I am using the standard page with a gallery block, slideshow, and it still does this strange behavior where it truncates an image instead of scaling it. Is that what you are experiencing?