Digi002 conflict with MediaPlayer, MSN & Quicktime

[Kermit The Rabbit]

Hi there,

I'm running Mac OS 10.3.9 on an iBookG4 which I have for about a year now. I also have a Digi 002 (Rack Version) with Pro Tools LE, version 6.9

Since a while (I don't know exactly when) I experienced some strange compatibility errors between (I thought) iTunes and the new MSN Messenger 5.0 for Mac (and also errors when trying to play audio and video in Windows Media Player and Quicktime). I went to an authorized Mac Dealer, they checked it in the store and everything functioned allright.
So I went home and thought the problem might have to do something with my Digi 002 and indeed, when I DON'T play audio through the DigiCore Audio Manager

--> MSN functions properly while iTunes is playing music (meaning: I stay online and receive and am able to receive and send everything. When iTunes is playing music through my Digi002, in some strange way after a while I don't get any more messages, I still can send them, but no one gets them, so basically: I can't do anything, because MSN doesn't function correctly)
--> Windows Media Player plays songs and video clips correctly (when trying to play through DIGI002, I get an error message, saying that the file format is not compatible with Windows Media Player, although it can't have anything to do with the file format, because when I don't use the DIGI002, Media Player CAN play it)
--> Quicktime Player 7.0 works properly (meaning: when I try to play songs in QT7.0 using DIGI002, I manage to play them once, but when I want to play the same song a second time, QT freezes after 5 seconds of playing time).

A simple solution would of course be not to use my Digi002 anymore with those programs, but my monitors are connected to my Digi002 and the audio coming out of the iBook is far from what you would call great...)

I read about the Quicktime 7.0 problem and the temporarily solution (downloading version 6.x.x), so I don't really need an answer on that question (I don't use QT very often anyway), but I'd specifically would like to listen to my music again when talking to people on the net without having to double check if they still get my messages and if I still get theirs and without having to nottice this is not the case and so without having to restart all the time or chat in pure silence...

Please help me, thx...