John,

1...check - Did a controller reset (I think) to start out fresh
2...check Got the Win 7 x 64 drivers installed and they are recognized by RealBand.

Yes, I'm fiddling with the stuff all the while.

I have Garritan stand-alone up with a Steinway on track 1. Selected the 61es as the midi input device in Garritan, selected ASIO driver and the Tascam as the audio device. I set the 61es to channel one (advanced functions -> hit the lowest 'D' note, D1 (channel 1) per the manual)... nada sound in Garritan. I can play the virtual keyboard in the UI but not from the 61es.