Need help: just upgraded to Mavericks, now can't use audio interface.

I just upgraded to mavericks, and now Itunes and my other programs don't recognize my audio interface.
It's a MobilePre USB preamp. I tried uninstalling and re-installing the driver without success. Interesting, QuickTime sends audio to the external preamp, the sound is filled with static. I've tried playing with latency, but that doesn't help.
I can't understand why Quicktime recognizes the external device, but Itunes doesn't. Suggestions are appreciated.
My machine is 21.5 inch late 2009 model with a 3.06 GHz Intel Core 2 Duo processor and 12 GB of RAM.

Hope this references the equipment you are using.
The last update to the drivers is 1.1.3 Nov 2012
http://avid.force.com/pkb/articles/en_US/download/MobilePre-Drivers?popup=true&N ewLang=en&DocType=1450&q=MobilePre
If this is correct perhaps an email to Avid could help. I would think that they need to update their drivers to suit Mavericks.
There is also a link on that page to an article about Pro Tools and state that it is not supported on Mavericks at this time.

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