Focusrite 4i4 3rd gen - Loopback and 3+4 not showing up in Audition

I bought a brand new $2000 Dell computer a couple months ago. Its way better than my old Dell computer. I have been using Scarlett 4i4 to record and playback. Worked fine on my old computer. For some reason my new computer fails to recognize the Loopback and the Analogue 3+4 so I can't record through the rear inputs. I have 2 mics plugged into the front and 2 line inputs plugged into the rear. I can hear the keyboard on my headphones thru the Scarlett, but the sound doesn't get to Audition. I have tried everything I can think of. Can anyone help?