Before you say anything, I got this working before. It was an option from my hardware manufacturer OEM version of Windows under the "Dell Extend Battery Life Options." When I re installed Windows a year later and got the same drivers I noticed on the same screen I lost the option to auto enable/disable Aero transparency when in pluged/unpluged my computer. Just asking if anyone has a version for the Dell Inspiron 5520 (Win7) that has the option or if you have another way like messing around the registry or something that will allow this functionality. C'mon who doesn't like eyecandy and then making it disappear when you need to save energy.