Audio Interface Not Showing Up

Hey there, I bought an Alesis Multimix 4 USB audio interface the other day. I’ve got it plugged in, turned on, and installed the optional driver, but for some reason it still isn’t recognized as an input device on audacity. When I first plugged it in, something popped up in the corner of my screen saying that a USB device had been plugged in, so I’m assuming that means the computer is recognizing it. Anyone have any suggestions?

Audacity doesn’t update its device list automatically if you add a device while Audacity is running.

Restart Audacity or use Transport > Rescan Audio Devices.