Well, I've maanaged to work out one thing I was doing wrong! I saved the midi files to a new project in Sonar. They played the Rall. Copied into the correct file....they played the Rall again........but when I started to edit again .......problems.....this project has a"LIVE" Guitar intro for 12 bars....then a RealDrum Roll....then all the tracks play. I had CLICKED HELD DOWN & DRAGGED the clips to the new position. Audios are fine...not the midis! Why should that be? Thanks, Joe G.