Hello, I recently purchased the Theatre Solutions TS514 5.1 surround sound system from Amazon. I played around with it and switched it from the factory equipped 2.1 option over to 5.1, hooked up my speakers with relative ease. However, only the front left/right and rear left/right work. When I plug the centre speaker in, it emits a horrible buzzing noise as well as playing the music, though it is distorted and sounds as though it's coming in from an incorrectly tuned radio station. I was wondering if there was any solutions to this, as well as the mild buzzing that I receive from the other speakers as well? (I also have it standing alone, in the process of getting it to co-operate, away from any other electronic devices, and according to both the manual and youtube videos it doesn't matter which speaker goes where) Thanks in advance.