Hey guys, I was wondering, do you guys tend to leave your speakers on all the time? Having the on/off button behind the sub makes it sorta difficult to turn it on/off all the time, and i'm wondering if it will mess up the speakers to just leave them on?? Also, i notice if i twirl the plug that plugs into my powerbook, the speakers give that crackling noise a little, and im wonder how can i prevent this? At home, my logitechs give that crackling noise alot, i have to keep the volume very hight for it not to happen, so how do i prevent that happening in these speakers??? thanks guys.