I'm running a Sonar with an oldish PC. Now, I'm having troubles with mixing i.e. dropouts while recording a complete mix. Is there an easy way to give a little help for the poor PC? I'm almost done with mixing but few songs just won't go. So I'm not going to upgrade the PC for this purpose. That will happen later. It's the CPU meter that is running red, not the HD. I've stripped all plugins I can. How does Sonar behave with muted tracks? Are they consuming CPU time? What else is there I can turn off/reduce? PC: AMD 1800XP, 1 Gb mem, 7200 rpm 30Gb HD, Windows XP pro.