I read a recent post with someone stuck with his mac 10.5.6 and that there were a fireware fix.
I tried this solution (even if the administrator wrote that it should work under my version (10.5.8)) but and i can't even install the fireware ("no fireface driver or device installed")...
I tried installing the babyface from the cd driver, then with the online drivers, it doesn't work.
I can see the fireface USB settings icon, but when i try to launch it, it shutdown instantly
I have the totalmix icon too, but when i launch it i can't see any mixer, and when i try to create a new totalmix window, it crashes.
Babyface doesn't appear in the sound preferences of Mac OS.

I hope someone can help me.