Good afternoon, I've been lurking the forum for a while and finally decided to sign up. Unfortunately it's largely due to a problem I have been unable to resolve on my own. I have one of the 4300U SP2s and recently I've noticed that the screen will not turn off on it's own when I'm on battery power. Regardless of the power plan or specified timeout setting. If I manually hit the power button to turn of the display, sleep etc... seem to be fine. However if I'm using the surface dock, everything functions normally as you would expect. Is this the "sleep issue" people have been referring to with the December firmware? I did not load the flawed December firmware, though I did get the January update apparently. Unfortunately I cannot remember if I had this problem before that or not. Has anyone experienced anything similar or have any suggestions? The only thing I can think of to try and this point is a factory reset, but I'm trying to avoid that if possible. Thanks for the input!