I'm in the process of putting a big band composition into DP4.6 using JABB and am experiencing CPU overload issues. I have tried thinning continuous data (I notice that mod wheel data is everywhere in the brass and reeds and thought that might be clogging the machine a little, but I have set values as high as 60 in that parameter and no noticeable change. I've increased the size of the buffer to 512 in the system setup (I was using 256 to reduce latency). And still it seems that any of the louder, tutti areas redline the cpu and cause distortion. As I am basically at my wits end and have doggeared my DP manual looking for help, I thought I might hear from a wizard or two on these forums. (DPDan and others are you listening?).