I've only just noticed an issue that after disconnecting from wifi my phone doesn't automatically go back to 3G/2G. I have to turn the wifi back on and when it can't find one only then does it decide to connect to 3G/2G. Didn't have this issue before and I'm thinking the latest update (1.31.405.5) has something to do with it. Anybody else having similar issues? BTW I'm on the vodafone UK network.