This started two updates ago, and I thought the last update would fix it, but it doesn't. The screen won't rotate for photos, calendar, or safari. The "lock" button doesn't change anything. I've done a hard reset (holding down Power and Home) a few times, and a restore to factory default, and none of that works. The compass works great, other apps that involve sensing that the phone is rotating work fine, just not the iPhone Apple apps. Any ideas? On the factory reset, I put all my data back on before checking the rotation. Is it worth trying again?