This error message appears when i try to load a mix I have been working on for days. I decided to go back into the file to tweak a few things after I mastered in Pro Tools. I'm wondering if Logic has saved something which it now can't open fro some reason (can it save something that's too big for it to re-load?). I have it backed up on another drive and the same thing happens with that file. It hangs for a long time on bootup with the "mixer setup" window showing, and then shows the error and then crashes. I have 96 tracks of audio, all DAE, and the outputs are routed to various outputs so I can send them to the dangerous summing mixer. There are a lot of vocal rides, but nothing more than I've done before. any ideas? G4 dual 1.25, Panther 10.3.9, PT 6.9, Logic 7.1.1 Everything has been working fine for weeks, including similar mixes etc. An older version of the logic file (way before the automation/routing etc) does open, but it . Thanks! Greg