I have the same Problem. It shows me that this the program was purchased on another computer and I must enter my apple account Login and Password in order to enable Cookie 5.8.1 on my computer.
Latest posts made by marioshl
RE: Can not update Cookie 5.8 to Cookie 5.8.1 in AppStore!
RE: Latest Update
Same Problem. After new installing, doing so just gave me the unending request for AppleID and password. I finally gave up and found an older version (5.7.8) on a backup and went through the setup process. This version appears to be working. Based on this, the installation problem appears to be associated with version 5.8.1.