I have a MIDI drum track sequenced. With no other synths in the Synth Rack, I add, say, SI-Drum Kit. When I open the SI- Drum Kit window, I can click the drums and I can hear them, but as soon as I hit Play, nothing. I hit Stop and when I click on the drums, nothing, no sound. This is the way it is with all the synths except TTS-1. It works fine.
I've checked the Event List, but there is nothing there to cause it.
Any ideas what could be the problem?