I guess for the past few weeks, I wanna say since 10.5.3, the music I play through Airtunes has sounded crumby. Some distortion and crackling. I got a bit worried and thought it was maybe a HW issue, but tests and wavelengths turned out ok, and games/tv/movies had no issues. So I turned on Airfoil, to force all system sound through the AP Express and thus my sound system, and played songs back and forth, from iTunes and Airtines, to Quick Look/Quicktime and Airfoil. Lo and behold, Airtunes sounds nasty, Airfoil sounds perfectly fine. And now finding what the issue is. Does anyone have any ideas?