Yes Noel I have tried different tracks. I had the same issue in BiaB when I generated "Bossa to Swing" on someone elses midi file. I didn't think twice about it since I didn't know what might be in the midi file. I have now been working on my own realband arrangement with no midi and no Biab tracks. I should also mention that I purchased the "everything pack" during the Xmas sale so I have the latest updates for the realdrums. I also did a first time install from DVD's onto a brand new computer. I'm going to give support a call...Bobby