I got a 64Gb Surface on Friday and I love it but I am wondering if I have a problem. The display seems to dim from time to time while I am using it. The display does not turn off unexpectedly. It is behaving normal when I am not using it, but there have been times where I have been browsing the internet and the display will dim slightly. When I touch the screen with my finger it does not brighten once it has dimmed either. But once it has dimmed it does seem to brighten after a bit randomly. Has anyone else seen this behavior? I am in Atlanta so I can head to the MS store but I thought I would ask. Also, anyone know how to close Windows Store apps from the touch screen. I know with a mouse attached you can grab them from the top of the screen and drag them to the bottom but I cannot seem to figure out how to close them via touch. Thanks!