Need Help With Us-122 No Sound Options

[RichB]

I i'm very new to CPU recording got the us-122 installed the drivers and cubasis. They all loaded fine and the unit also has power and works but I cant get any sound into my computer. I hook up my guitar to the guitar input on the unit and when hooking up my headphones in the headphone output jack in the back I can hear it fine. I cant get any audio going into my CPU. I have a gateway desktop 2 gig pretty new. Any ideas Thanks Rich