ok.. well im pretty sure i have a ground loop problem. But I've been reading that most of the ground loop comes from cable tv and you can test it by unpugging the cable from teh tv and if the "hum" goes away then thats where the problem is coming from. Well mine is the opposite, when I unplug the cable from the tv it gets a lot worse and actually starts to go crazy. What does this mean? And how can i resolve this.