This is kind of a small thing, but my nook has not been going to lock screen when it sleeps or when I put it to sleep since I went to CM7. When I push the button to wake it up I am right there on my home screen. I don't think it is causing any problems (though I have noticed CM7 uses a lot more battery than the Autonooter did) but I would like to have my lock screen. I have tried working with the settings in the settings/CM settings/lockscreen settings but I can't seem to get a lockscreen. Thoughts?