blueola

Hi, wonder if anyone can help! I have an acer aspire 5735 running vista home basic that has 'lost the ability' to hibernate. When I first bought the computer had the option set up of when I close the lid the computer hibernated after 'x' time. However there was a computer problem and I had to do a factory reset, and now all hibernate options have disappeared and all I can get is the computer to sleep, shutdown or do nothing when I close the lid. This is really annoying as its draining the battery or means I have to go through start-up every time I shut the lid. Any help would be most appreciated! :)