Has anyone had this problem? I have to e-mail accounts setup on my iPad (3rd generation) and iPhone 4S. One is iCloud and another is a work e-mail that is Microsoft Exchange. E-mail pushes to both devices perfectly fine, but when I read any of the messages on my, for example, iPad, the Mail.app on iPhone won't indicate that it has been read until I actually launch Mail, then updates immediately. This has been going on for quite some time, and I've just now gotten to the point of annoyance and thought I'd try and figure out how to resolve it. I've tried restoring the devices, including a DFU restore to no avail. And bot devices are running iOS 5.1.1. Thanks for any tips!