For several times I have now noticed that once I come back to my home country after roaming , my mobile behaves as if it is still roaming - in the sense that battery keeps getting drained constantly and does not even last like 4 hours. I am given to understand that while roaming it is a common phenomenon for bateery to behave like that but why once I am back? The problem also rectifies itself after several days for no known reason! Is this a issue other have faced and how to over come this?