Just started messing around with the auto brightness setting. After reading up about it I see a lot of people are having problems with it. Mine too seems way too dim. Anyway I figured I'd give it one last shot...and was wondering where exactly is the sensor? Im wondering if my case is covering it or something. Similar topic...is there anything wrong with keeping the brightness at about 33% for most of the time? Burn in? Or is it just battery drain?