I'll keep this short and sharp. Previously, when I would resume my mac from sleep, it would make the screen look similar to the normal login screen. With things spread out and nicly formatted. With the menu bar showing the essentials like network, time, and battery in the upper left. Now, when I resume from sleep a small window appears telling me I need to enter my password to "unlock the screen". What would cause this? Any applications that I might have installed without being aware? I have restarted 2/3 times, and I will continue to do so for a short while more, in the hope that it can help me. Thanks in advance!