This may have been established already, but I searched the forums and couldn't find an answer: Is the iMac and MacBook's ambient light sensor enabled in Windows? I assumed it wasn't, since every time I ran Windows 7 on my MacBook I had to adjust the brightness manually, but I was poking through services in the task manager and found an ambient light sensor service. It was not running so I enabled it and still didn't notice any auto brightness afterwards. Did Apple not supply the necessary driver or is it just impossible? Does anyone have it working like in OS X? Thanks!