Hi everyone, I'll make it short and with facts of what I have done. The Facts: 1. My wife has an iPhone 4S (iOS 5.1) and has her Gmail Email and Calendar setup as an exchange account in the "Mail, Contacts, Calendars" settings. 2. I have an iPhone 4 (iOS 5.1) and also have my Gmail Email and Calendar setup as an exchange account in the "Mail, Contacts, Calendars" settings. 3. We both use our Gmail email as the email account associated with our Apple ID. 4. We both have Calendar Alerts fully activated on Notifications Center (same exact selections) and have also marked "New Invitation Alerts" as "On" in the "Mail, Contacts, Calendars" settings. 5. We both have selected "Push" on the "Fetch New Data" Setting. 6. We both have iCloud accounts but do not use the email nor the calendar functions of iCloud (we want to use Gmail). 7. If we create our own events in our own Calendars and set a reminders (for example "at the time of the event", we both get the alerts/notifications normally. 8. To summarize, I have gone item by item on both iPhones to make sure we have the same selections on every setting. The problem: If my wife creates an event on her phone and invites me (rememer gmail to gmail accounts with same configuations in both iPhones), I do not get any type of notification. The event will just show up on my iPhone Calendar greyed out until I accept it, but there is no type of notification (no popup notification and sound, no badge icon even though both are turned on in the settings of notification center an no pending invitations in the "Invitations" tab in the Calendar App). However, If I create an event in my iPhone 4 and invite my wife, she will instantly get a pop up notification, with the sound alert she chose and her Calendar will pop open once she presses the pop up and the "Invitations" tab of the Calendar app will show up for her to accept the event. Everything works fine with here iPhone! The problem seems to be related to my iPhone since if it was a Gmail problem, my wife would also be having the problem. Again, this problem is only when receiving invitations on my Calendar, because if I create my own event and set a reminder, it will function (alert) me as it should. I don't know what else to do! Any ideas of how I can resolve this? Thanks!