Please Help About My Sound Card Output! Options

[savix]

HI ive this problem which ive never had it b4//...
ive new imac and i installed windows to run cubase sx 3 and my sound card (fa66 edirol )works fine on mac and i installed drivers in windows as well and i checked them from device maneger and it seems to be fine but when i want to change my out put true sound controll it only shows my internall sound card (ive unistalled driver for my sound card and did it again but same problemmmmmm!!!\
by the way for using windows on my mac im using boot camp..
if anyone can helpppp me whats going on pleaseee////...thamx
best regards