[Protonus]

Ok, I think I have the "cause" figured out in my case, as I said it's not a lock problem for me. Does anyone else have this setting on?
Settings->Personal->Owner Information->Options->Identification Information & Notes
?
It makes it show recovery and owner information whenever the device is woke or turned on after reboot. It's basically the lost and found message so if a gracious person finds the phone they know right away after turning it on in any way who it belongs too and how to get a hold of them... (mine has a note to call my GF and a contact # for her)
I've always used this, but, I have noticed that it returns you to the home screen sometimes, when the device is woke. I've turned it off for now, but if this IS the problem, then that means that the prox sensor is actually SLEEPING the phone rather then just shutting off the display or backlight like I would want...

I guess this message isn't as needed with the new RemoteTracker build I'm running on it so if this fixes it, I'll leave it off. But if it does fix it, why didn't they just make the prox sensor shut off backlight/display rather then sleep the device oye. I'll let you know if I see this with this setting off after a few days of testing...