Craft Edge

What am I doing wrong?? I never had any issues with using SCAl 2 with my Bug, but for some reason I cannot get SCAL 3 and my Cameo to work together. Are there any tutorials that will show me how to set them up together to cut? The "print" box comes up but Silhouette Cameo does not comes up as a printer and when I attempt to add a printer it is not a choice. Graphec is a choice but there are different models listed....

I wish I knew how to help because once you get it going, it's great. This is such a basic question, but do you have the "Silhouette SC/Cameo" checked under "My Cutter?"