Just wondering what would cause PC speakers to crackle when volume is being adjusted? Everything works flawlessly otherwise, just an annoying crackle when volume knob is turned. Speakers are Logitech's but I have no clue on the model #, but they are 2 THX marked mini speakers and a boxed woofer, (ya ya.. I know doesnt tell you alot) I double checked cables on both ends and at the motherboard header. I've even tried 2 different audio cables. Anyhow, its not a massive problem, just annoying and it hasn't always done it - only started last 30 days or so.