I want to download some movies from itunes, and it would not allow and said I needed storage. I added some so my ipad says I now have 14.9 GB of 15 GB available. When I attempted to download again I get the message" There is not enough available local storage to download (movie). You can manage your local device storage usage in settings". How?? When I go to storage and backup to try to manage, it says" iCloud storage details are currently unavailable. Try again later." Later, I get the same message. The Back Up Now button is highlighted. Do I need to do that first, and if I do, doesn't it just send to icloud what my ipad has already backed up? Thanks in advance from this newbie. Did I mention that I'll need step-by-step idiot-proof directions if you answer?