It's a Dell Vostro and I read in the manual that I can leave the laptop hooked up to the charger as long as I want as it won't overheat, but I have a question when charging. Right now I am using the laptop as it is charging but if I were to charge the laptop without being on it, is it better to shut down the laptop or to just put it on standby? What do you guys do..? I am about to go to bed and I'll probably leave it connected to the charger but should I shut it down or just do stand by? BTW I'm using Windows Vista..