Motu 828 Mkii Problems, screeching halts my recording Options

[Stradivarius]

Whenever I attempt to record or even just work with my files in Audiodesk, sooner or later my 828 unit will cease any playback and produce a piercing high-pitched feedback type sound until I turn it off.  It even persists to do it after I quit Audiodesk.  Sometimes it will even do it when the unit is on and Audiodesk isn't even open.   I am using a 1.6 G5 single processor and have run Disk Doctor and optimized it a number of times.  In fact, I am running Audiodesk from its own 120GB second hard drive with nothing else besides OSX.  I can't tell if problem starts because of playback, recording, or what have you--as it seems to do be able to start during anything.  I've restored factory defaults, installed all the latest downloads from MOTU.com and it just won't work.  We have used the unit on my friend's Powerbook G4 and it will sometimes do it on that machine, but it seems to be less often than on mine.  I also set it as my sound output in the System Preferences to see what would happen--and began to screech after not 6 minutes of iTunes. I need a solution to this extremely frustrating problem.  Please help me out.  Thanks.

[jklimeck]

try a clean install of OS X, 10.3.3. You have to ensure, your OS 10.3.3 is not the issue also, re-install audio desk and get the latest firewire driver from MOTU's site. when you re-install the motu fw driver , uninstall the old driver and make sure the 828 is OFF when you do all of this.

I use DP 4.12, 828MK II on a DP 2.0 G5, so your only variable is single G5 and audio desk, make sure you get any updates from MOTU for Audio Desk.

after you do all of this, and it still freezes or have problems, call MOTU it could be the 828 itself, and they will ask if you have done all of the above to makes sure its not your setup.

In fact, as I have stated here and to all doing DP / OS X, pro audio in general, re-format your drive, new install of 10.3, then update to 10.3.3, re-install Audio Desk, updates, latest FW driver, after you do all that , all should be well.

good luck

jk