I have the speaker output on my computer running to my Yamaha receiver (R-V503) I don't use a cd player so I just ran it to the cd inputs, however when I run it this way I get an amazing amount of interference. I've tried replacing the chord that runs to the receiver, I've unhooked and rehooked everything multiple times, at one point I thought I had it pinpointed, whenever I would push the surge protector that the computer is connected to into the outlet harder the buzzing sound would temporarily stop, but now that doesn't even work, I tried a different surge protector, not using a surge protector, plugged into different inputs on the receiver, etc... no help. It's seriously going to drive me crazy. I don't get any interference at all when using the xbox, or the dvd player. Any help would be very appreciated.