There's nothing wrong with the saber. It's actually the sound font that has the pops and noises in them. A great way to test is if you download a free sound font from this page:
http://www.saberforum.com/index.php?board=36.0You'll see that the pops and noises are gone. Those are just default sound fonts anyhow as the board is meant for you to change them out however you like.