I got a similar problem.
Theres the same signals on output 1/2 and 3/4. I want different ones. It's routed correctly in logic.
I think the problem is the control panel of the interface.
I use snow leopard 10.6.
When i boot the macbook with the interface connected, the control panel will not open with a message like "could not connect to server. you need to start one on this machine first".
When i boot the macbook with the interface NOT conntectd, the control panel opens but i cant change a thing.. its all greyed out. When i connect the interface now, it will still open, but no difference.
The interface works, but i REALLY need to have 4 outs!
Hope anybody can help me out