I'm trying to rotate an image using the built-in image editor just like the instructions on this page: http://en.support.wordpress.com/images/image-editing/
However, when I try to save the rotated image, I get the "Unable to save the image" error. I've tried this on 3 different browsers (chrome, ff, safari) and am getting the exact same result every time. I've cleared the cache and everything as well. Any help? thx.