Hi, I have 2 midi drum machines connected via midi cables. When I play one, the other one plays with matched tempo etc. However, when I run a midi cable out of my Presonus firepod audio controller midi out, with sonar acting as the main midi controller, only the first drum machine is activated. I press R for record with sonar and only the first drum machine plays. I unplug the midi cable from my sound card and press play on the first drum machine and then both will play. Any ideas? Many thanks, Stacy