Sounds like your ASIO control panel for your soundcard is not set up to play the Line Input, somewhow.

What is the sound device?

**When you said that you could not hear the SD2 via headphones, even though its blue LED was blining to indicate that it was receiving data, you did not specify *where* you were plugging those headphones. If plugged into the SD2's own headphone jack, you should have heard the MIDI there, which would tell you the device itself was working fine but the connection to and through the soundcard was interrupted (because you could not hear anything from speakers or headphones when hooked to the soundcard output...) I of course thought that you meant that you could not hear anything when headphones were plugged into the Ketron's own headphone jack...**


--Mac