I just got this laptop. I have it set so it will go to sleep when I closed the lid. But twice I did that at night, the computer hung and cannot wake up. Ctrl-Alt-Del will not work, had to hold power button to force it to turn off. 1) When I force turn off, I have to redo putting Yahoo as the default web page on both Firefox and IE every time. 2) The Wi-Fi will not automatically connect and have to go through the connecting process. Is this problem with my computer? Or is this Win 8 problem? What can I do to fix this?