Hi everyone. I'm a newly registered member, but have been appreciating the wealth of information offered here for quite some time. I'm working with Logic 8, using a dual 3 GHz Intel Xeon Mac Pro with 5 gigs of ram, and using a Presonus FireStudio. I thought that would be more than enough power to run logic, but logic seems to crawl most of the time. Granted, I'm often running somewhere near 50 tracks at a time, and though I mostly use the logic built-in plug-ins, I have been making good use of Celemony's Melodyne, IK Multimedia's Amplitube, Art Acoustic's reverb, and a couple other third-party plug-ins. I'm continually getting "system overload" messages, despite trying all sort of different buffer sizes. Does that seem right? Am I just over-taxing logic? If that's the case, what I'd like to do is do what I used to do in Pro Tools, which is to disable certain tracks so that they don't affect CPU usage. This was easy to do in pro tools, but I haven't been able to find a way to do it in logic. Is there a way, or it that just not a function that exists in logic? Is there a way to do something similar? Sorry for the long post, and thanks for all the help.