[Zubersoft]

The DRM that Amazon inserts into the app requires that you have internet connectivity every so often to validate your purchase. I did not realize it worked like this at first, but that is unfortunately how they handle licensing. The Google Play and SlideME versions do not force you to have internet connectivity past the first couple license checks, but Amazon does. I wish I could switch your purchase over to another app store, but Amazon gives developers no control over the sales (I don't have the power to offer refunds).

Let me know if I can do anything to help.

Mike