I got these speakers yesterday for my computer and hooked them up. They sound fantastic when there's something going through them, but when not in use or even turned off, they emit a buzzing noise.

I've been working on this all weekend and I can't figure it out. Here's the setup and problem - I have a Creative Z2 Platinum sound card, a Viewsonic N6 video processor, and set of Klipsch 2.1 Pro ...