For years, I've had my Magic Jack hooked up to my Win XP PC. I set it so it would never go to sleep. If I hook it up to my Win 7HP PC, will it work even after the PC enters sleep mode. Will it wake up for a call? Or do I need to make it not sleep like I did with XP? I don't want to miss any calls. And how do I change this setting in Win 7?