After going through a bunch of changes in my system (iTunes PC -> DAC1, etc), I brought out my Test CD3 (great stuff BTW, JA) and on the first track I was noticeing some pink noise on the wrong channel, not much, but enough. So I tried out my headphones, same thing. Then I tried Foobar, and that fixed it. I am kind of shocked. I am using WAV, and my Foobar installation which I never use is just a straight install, no ASIO, etc.
I am going to investigate this more, and see if this is an iTunes version issue, but if anybody else has some thoughts, please post!!