I just got this mail from m-audio.Strange no-one else noticed this.Must be all units.
We just finished running those tests, and we were able to duplicate the issue you reported. We did notice that when playing a track from Pro Tools and recording it back in (Via an ADAT Loop), the new track was showing up about 150 samples earlier than the original file. Changing buffer sizes only made a slight difference, 10 samples or so (from 128 samples to 2048 samples buffer sizes).
We have logged this issue and escalated it to our software development team for further investigation.
5795 Martin Rd.
Irwindale, CA 91706 USA http://www.m-audio.com
Where do you want to take your music?