Would really appreciate some help. I have a month-old 2013 13" i5/128/4gb model and I just started getting clicking sounds - almost like crackles and pops on vinyl - during music streaming/youtube playback. As far as I can tell, it doesn't happen during iTunes playback - only when streaming something through the web is involved, like Rdio or something similar. My connection is fast and working fine. Does anyone have any thoughts as to what might be causing this?