Analog outs on MOTU 828mkII with Max/MSP

Hello,
My name is Steve and I am new to the board. Thank you in advance to those of you who may be able to shed some light on the problem I am having.

I have been using Max/MSP with a MOTU 828mkII for about six months, using only the MOTU's "Main Outs" and "Phone Outs." As I can manually adjust the output volume on the face of the MOTU, I've had no level problems.

Recently, however, I've tried to wire my patch (which is essentially a five channel looping device) for surround using a multiouts~ external and a dsp~ object with aruments 3 4 7 8 which corresponds to the analog outs on the MOTU which I want to use.

Unfortunately, I can no longer control the output volume using MOTU's CueMix interface, which Max/MSP seems to override. I have run my system using Logic, iTunes, Quicktime, etc. and have seemed to be able to isolate the issue a problem unique to Max/MSP.

The primary reason this is a problem is noise. Since I no longer have a main audio outs level control, outs seem to be running "hot" and thereby generating a high level of "hiss."

Any help anyone may be able to offer would be greatly appreciated.

Thank you,
Steve