audio interface settings

Greetings,

I can not configure the settings for my external sound interface. Logic Pro, iTunes, Quicktime, browsers, all my entire software works just fine but final cut does not.

I use a Motu Ultralite through the first two analogue channels. Final Cut insist using the main outputs and it does not work for me. Is there any way to tell FCPX to work through the analogue channels 1 and 2 instead of the Main Outs? I want to be clear: Quicktime, Logic and everything else works fine, I double checked the Audio Midi set up in OSX and it is just fine.

I have my software up dated.

Thank you in advance for any help I can get.