Running Aria player through Finale 2011 on Windows 7. My computer recently crashed and I'm still in the process of getting it back together. I'm working on an orchestral score and now find there is a great deal of distortion in the marimba sound. This happens in the lower three octaves of the instrument and gets worse as the pith goes down. I also get a bit of distortion in the lower octaves of the harp and a lot in the bass drum of Basic Orch. Percussion. How can I clear up the distortion?