Recording from USB

My PC does not have a seperate Audio Card, it is part of the motherboard.
The audio is fine except when it comes in via the 'Line In' socket where it is extremely quiet and distorted.
I am reluctant to pay to have another motherboard to cure this relatively minor problem.
There is an audio card available with 'Line In' that plugs into a USB input.
Is it possible to direct RM5 to the USB in order to record from there please?

Your assistance will be much appreciated.

use the audio driver in our program and it will work great with Replay Music. You need to make sure line in is enabled in your sound to use it with Replay Music