IPad Backup Issue with The Cloud
I have a message on my iPad screen that says '"iCloud Backup" The iPad hasn't been backed up in 4 weeks. Backups happen when this iPad is plugged in, locked and connected to Wi-Fi.' I click "ok" but message won't go away. I can't turn off the iPad either or lock the screen, because the dialogue box with this error message in it won't go away, even when I plug it in so it is fully charged and connected to Wi-Fi.
iPad 2