Thanks for everyone's help on the last issue. New day, new problem. I tracked 28 audio tracks at 24 bit res and applied one plugin to each track, then a 2nd plugin to 8 of the tracks, suddenly sonar crashes. the cpu meter doesnt register anything for 15 secs, then peaks. I have a p4 1.82ghz 512 rdram system with sonar operating on one drive, and the audio/picture files being saved on a 2nd internal drive. Anyone else plugged up out there?