So if you can hear the test signal on your speakers from the green output connector and you can get signal level on the blue line in with an external source, the problem has to lie with your breakout cables. Are you sure they are stereo breakouts at the jackplug end, not mono?I tested my line-in with a signal from a CD player. REW and windows both acknowledge the signal. Used the same cables too. Unbelievable. Still nothing.:gah: