I am glad you got this working. I was going to repeat everything Herb said, but apparently now there is no need. Glad you got it!!

I never had a problem with the Scarlett from first launch. I guess I got lucky with the driver install.

I use a Behringer preamp that I route out to the Scarlett, and run my midi keyboard into the Focucrite as well. (Thus I turn off the phantom power on Focurite. Don't need it twice.) Everything works great and I don't think I did a lot to get it working.

For electric guitar I usually mic a tube amp and run it into the Focusrite by way of passing it though the Behringer preamp first and the sound is crisp and warm if I record into Real Band.

As I have stated numerous times, RB is my DAW of choice for recording audio. Once I have all the audio I need, I eventually mix it down in Sonar.

Glad you have it working!!!