For some reason the Hibernate tab disappeared from my Power Options. I am 100% sure I used to have it. I don't remember doing anything that would cause it to disappear. Please help.
I am using Microsoft Windows XP, Media Center Edition, Version 2002, Service Pack 2. My system is Dell Dimension E510, (though my System Properties/General tab shows my system to be Dell Dimension DM051 - could this, in fact, be my problem? but then how would it switch on its own and what can I do about it?)