I've noticed since the last update, that on occasion my phone will decide not to sleep. The screen wont turn off automatically after siting. I never really solve it. I just turn the screen off, and sometimes it works next time(turns off automatically) and sometimes it doesn't. I haven't noticed a trend with any apps. The only consistent app I use is the messaging. Maybe BeyondPod also. Has anyone experienced anything similar. Suggestions, other than factory reset?