My mac book pro wont recognise the Control Pro Soundcard?

hello mixvibes community
I have just purchased a U-Mix Control Pro DJ controller including Cross DJ software
Cross DJ 1.5.1 serial number xxxx-xxxx-xxxxx-xxxxx-xxxxx
i currently use a new mac book pro purchased from Apple in april 2011
the unit seems to be fine as does the software
but i am experiencing a problem
i can not get the software (or my mac !!) to recognize or play any audio through the U-Mix sound card
the MIDI information is all fine, and i can control mp3 files with the Cross software
BUT audio will only play from my Apple mac headphone output
please advise where i might be able to find help with this
I have already looked on the mixvibes forum
kev
I have just purchased a U-Mix Control Pro DJ controller including Cross DJ software
Cross DJ 1.5.1 serial number xxxx-xxxx-xxxxx-xxxxx-xxxxx
i currently use a new mac book pro purchased from Apple in april 2011
the unit seems to be fine as does the software
but i am experiencing a problem
i can not get the software (or my mac !!) to recognize or play any audio through the U-Mix sound card
the MIDI information is all fine, and i can control mp3 files with the Cross software
BUT audio will only play from my Apple mac headphone output
please advise where i might be able to find help with this
I have already looked on the mixvibes forum
kev