a new problem? I press the START button and I go to the lil arrow thingy at the bottom right (The one that goes to "Shut Down", "Sleep", "Log Off", etc. and before there used to be an option "Hibernate" but today for some reason that option has dissapeared and I can't figure out why. I tried restarting and what not...it's so weird. How can I get it back? o.O Is it something I did?

Go to control panel and click on taskbar and start menu and go to the start menu tab and click change buttons/customize.