I just got a First Act USB Instrument Cable for Christmas. When I plug it in is anything supposed to pop up, cause nothing does. And I'm tryin to record using Audacity but whenever I press the record button it says:

"Error while opening sound device. Please check the input device settings and the project sample rate."

Any help would be appreciated, thanks(:
I dont know anything about that cable, but dont you need an audio interface to record direct in to your computer or is that cable magical ?
USB goes into the computer. It's effectively a single input audio interface.

You need to check the software (audacity) to see what it's "listening" from. By default they use your computer's sound card. You need to change it to the proper input, which would be the usb device.

Read the Manual.
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