With iOS7, Apple changed the logic relating to how a device is identified. As a result ProView is seeing existing devices as new device.
We have taken steps to address this in the recent ProView version 1.8 release. For those who upgrade to IOS7, prior to upgrading to ProView version 1.8, you will be asked to register as a new device.
As a result we recommend updating to ProView version 1.8 as soon as possible. You can update to version 1.8 at the following locations: