Sometimes when im watching dvd's using WinDVD 6 I hear this really odd ass Clicking Sound coming from my speakers. strange thing is i only hear that sound Through DVDs, not files or mp3s. so it cant be a speaker thing can it? oO
Maybe is the amount of bass, try lowering it a little and see if the click stops. There could be the dma though. You may have problems if its set lower than 3 and then sometimes a click can happen (happened to myself).