Here is my dilemma: I have a Roland TD-25 V-Drum kit with v1.10 software on it. It's USB driver is set to "vendor". The PC has the Roland v1.00 USB driver to control the TD-25 interfacing to Studio One. When I select the TD-25 as both input and output in the audio interfacing, I can record the TD-25 sounds to a track while monitoring with the headphones or connected speaker of the sound module. This works fine as an "instrument" input via USB. What I cannot do is run Impact drums sounds in Studio One with the drum kit. I have a Akai MPK249 Keyboard controller also connected via USB. I even have midi channel selected only for the Roland input and made sure that it was not selected for the Akai device. When I loaded Impact and hit the drop down arrow in the right hand corner to change the control device from MPK249 to TD-25, the TD-25 was jot in the choices, just the MPK249. How do I fix this so I can run Impact with the TD-25?