hello all! I am posting this in regards to the signal bars turning from green to white a lot. The reason this is happening is because your phone is disconnecting from the servers and services from Google. When this happens data is not pushed to your device such as emails or any push notifications that you may have with other services or apps. Please let me know if you are experiencing this so we can let Google know there is a serious connection problem! here is a video i made to show the problem: YouTube - Disconnecting from Google's Severs (Nexus S) thanks for time and hope we can get this problem resolved.