I have run into an interesting problem that is not cycling74's fault although Max is a victim. I have recently set up two new iMacs with digi002 and digi003 interfaces.
Occasionally, MSP playback is distorted by square wave modulation at 2 Hz . Some other programs (Logic for instance) are affected, some (Peak, iTunes) are not. This is with System 10.6.7 and digidesign 9.0.2 core audio manager. Digidesign 8 works fine.
Digi cannot reproduce the problem and has no other complaints. Has anyone else had this happen? You would see it after upgrading to Protools 9.
Please reply directly to firstname.lastname@example.org