Hi, I am getting conflicting advice about this, please help. I have just had a new modem fitted instead of the internet coming through the set top box. I also have a wireless router in the same vicinity. should they be left on all the time ( and also the cable set top box?) or should I turn them off as a fire hazard. I have left the router on up till now but this new box with all it's flashing lights worries me when I leave the room at night. They are plugged into a multi extension board-how safe is it? Is it dangerous or is it actually the case that they should be left on? thanks in advance. Judy