Will, I got some good news and some bad news.
I’ll start with the good news. It sounds like you got the Arduino drivers installed. Yea!!
The bad news is by installing the blink program you wiped out the GRBL software that came on it that you need to use to run the x-carve. You will have to reload the GRBL software on it.
Hopefully this post will help you out.
If not, we will try something else.