John Vere, thanks for the quick reply.
About the driver, I'm not sure, that all happened automatically when I set up the interface. But the under settings in the Focusrite Control Software, it says Scarlett 4i4, so I think the driver is correct.
As to the ASIO, I did not have that set (didn't know I should). I set it to ASIO but now I have a new problem. I can access Input 1 and Input 3 on the 4i4 but not Inputs 2 or 4. So I'm apparently still doing something wrong.