harman kardon hk 695, no sound

[jscoop1]

I have a Harman Kardon HK 695 hooked up to my computer. There is no sound coming from the speakers. I've done the testing that the manual suggests and everything turned out fine except still no sound. The green lights are on the speakers. Any ideas?

Thanks,
Judy

 

[popatim]

What do you have set as the default playback device?