Anyone found the Auto Brightness f'ed up on the new iPad? Firstly it's way brighter than iOS 5. I mean a lot. Then if I go from a semi-bright room to a dark room, it doesn't get darker until I switch it off then back on again. Similarly if I go from dark to semi-bright. Strangely it does adjust automatically if I go from semi to bright i.e if I switch on a ceiling light. But if I switch the light off the screen remains bright.