hey I don't know if this will be helpful or not, probably not, but I think I found the source of one of my problems. I was using one of the new age patches with acoustic guitar and added a piano track. I kept hearing something and something like someone was walking around upstairs. the drum track seemed to be empty so I didn't think about it but when I soloed it there was some noise every couple bars. Muted the drums and the sound went away.
WSS