So if you’ve used the Untether for iOS 5, then you’re bound to have seen this screen before in iBooks. This problem comes up all the time with new jailbreaks, random Apps just break. pod2g has noted that a fix has been made and an update to Corona should be live within the day. To those of you who fixed this by moving iBooks to your main Applications folder, you will need to delete iBooks from there, Update/Install Corona, then Reinstall iBooks. An update to this article will be made when the Corona Update is live.