A few days ago I installed Messenger on my iPhone (running 9.1). I'm not sure what happened but iTunes on my MacBook Pro now shows this dialog every couple of hours or so:
Any idea how to make that stop? Syncing my iPhone with the laptop doesn't help.
This has been happening on my iMac since downloading the Messenger app two weeks ago on my iPhone. VERY annoying to be interrupted every hour by the following popup.