One of my Pages documents includes a lot of images, and I did a lot of work on it today. When I closed it, it froze, so I restarted my iPad (this happens to me kind of often and restarting usually works). It had already saved, but when I opened Pages again, it had the little "updating" symbol in the corner, and every time I tried to open it, it gave me a pop-up box saying that it couldn't be opened. Now it's been that way for four hours. I copied it in the hopes that the copy would open, but that didn't work either. I know I should have backed it up, but I only started it yesterday. Does anyone have any suggestions?