Hey everyone, I am new to the forums, but I am hoping you all could help me out. Recently I got Reason 4.0 and an M-Audio Axiom 25 controller to create some homemade beats and tunes for fun as a side project. I have my controller hooked up and working well, but the problem arises when I am trying to deal with more than one audio track. I create a beat using Redrum within Reason. Once I have that looping I pull down a synthesizer to start creating anything and it won't work. It recognizes the keys are hit and that I want something to play, but while I have Redrum running I can't hear anything besides Redrum. The only way to get the synth to make a sound is to close out of the project, start a new one and only use a synthesizer. I have been thinking that it is the Macbook's internal sound card. Is it possible that it isn't powerful enough to support multiple track outputs. Does anyone know of a solution or a way around this? I have looked into external audio ports like the M-Audio FastTrac, but I dont know that this will solve my problem. PLEASE HELP. I am currently running on a 1st Gen Black Macbook with 2GB RAM, 120GB HD, I got it with all the fixings when the Macbook first dropped like 3 years ago.