Hello, If you're using CakeTalking Sonar then there is an excellent tutorial on how to do this. Basically you set up a separate audio track for each instance. Each audio track is a separate output and then the MIDI track can use whichever audio track they want for the input. I know that's vague, but that's the general idea. Dave ----- Original Message ----- From: Emccullough1 To: ddots-l@xxxxxxxxxxxxx Sent: Monday, September 14, 2009 18:28 Subject: [ddots-l] Dimension Pro Question. Hello: What's the correct way of using more than one instance of dimension Pro? For example: Using drums for one track, bass for another, strings ETC? Any help would be greatly appreciated. Ernest.