Hello,
Spark input and output on midi devices is unchecked inside Sonar. (In fact, whenever I check both input and output for Spark, okay the dialogue, open it back up, it always goes back to uncheck status.)
There isn't the option to choose Spark as the input device on the Spark soft synth track itself.
Only time Spark is available as an input device is on an audio track.
I have even tried to record on an audio track using Spark as the input device. No go. (However there are a lot of different spark input types, -1 Spark left mono, 1 spark left mono, same for right and stereo instances as well. (the total number of input types goes pretty high) I've tried them all without Sonar recording anything being done from the Spark, either via the pads or the sequencer)
I apologize if this should be a simple fix. Between being blind and not completely familiar with how midi works, and due to the Sparkle windows not at all accessible with my screen reading software, this is taking way too long.
But I am determined to fix this if you all are patient.
P.S.
Ben, would helping via Team Viewer be something you'd be interested in? If so, send me an email.