i've had automatic maintenance pop up in my system tray several times in the last few days, it says it wants to run and i have let it but i can't tell what it is doing. it seems to be each time i run it does "something" and then just goes back to the little flag in the system tray saying to do it again. all that the "change maintenance settings" under "action centre" does is allow for selecting the time of automatic running. when i do select to run it my laptop screen brightens for a few seconds, a clock icon appears over the system tray flag and nothing noticeable happens. what does automatic maintenance actually do, does this repeated running indicate a problem with my system?