Ok - So I had some issues with using my guitar amp on the line in of my computer.... I had some buzzing issues. In my full on investigation I have discovered some distrubing things. Let me describe to you this, and please help me out and tell me this could only be a problem with the electrical system within the walls. I have my computer running - of course plugged into the power outlet of the wall. I have my headphones plugged into my computer so I can hear. 1. When I pull the power cords out and in on RANDOM things around the house that are in no way attached to the computer in any way whatosever - I get a buzzing when they're in, and less buzzing when they're out. Again these objects are in no way connecting to my computer, except they are running through the same power system (but not the same outlet) 2. Ok - with the same setup, I have a cord plugged into the LINE IN on my computer. WHenever I touch this cord to random cords lying on the ground that are IN NO WAY PLUGGED INTO ANYTHING - THEY ARE JUST LYING WITH BOTH ENDS ON THE GROUND - it causes alot of buzzing in my headphones So in both cases completely unplugged random cords are causing buzzes in my computer headphones - and unplugging objects in the walls which are NOT connected to my computer cause buzzing through my computer DOes this provide evidence to the claim: CLAIM: The buzzes of the plugged in objects are causing power changes which are coming through the power plug of my computer and into the headphones? QUESTION: Why would touching the line in cord to unplugged cords lying on the ground cause anything to happen? There should be nothing going on in the cords should there?? Anyone who can help me out here thanks Really I just want to know: 1. that this is a problem inside the wall power system 2. POssibly the origin of the problem so I can sound knowledgable when I talk to the front desk people THANKS! Oh and also, for those who missed my earlier post. The reason this started is because whenever my guitar amp is on and plugged in I get a local radio station coming through the amp speakers. thanks again!