I have used the stock app for ever, since couple of months I don't hear the notification tone when I get text. i can see the text, send text, but no notification tone. I have tried the app from verizon, Texra and Messenger, but none has the ability to zoom in the text. i wanna be able to see the text when I don't have reading glasses on, so, only the stock app does it, but can't get around the tone problem. I have checked the setting and the Notification is ON, sound is chosen.