i installed Asus Xonar DS today, then finally unpacked my HK 3490. i do not have speakers hooked up (moving so waiting till i move to hook up) i am using the HK to run my Beyer Dynamics DT770-250 Headphones. so i run the optical from the adaptor to the receiver....nothing, no sound. i have played with options on the Asus menu and XP sound menu. finally i ran media player classic and i gots sound :eek: . i cannot run ITunes, it won't load since i installed Media Monkey. so anyone know anything about Media Monkey and what i got to change in the options to make the sound play? kinda sucks opening one song file at a time in MPC.