Catsoup

Hi, I've been having difficulty using the Flirc usb receiver on my Raspbmc/XBMC setup. I have plugged it in but it does not seem to be detected, the Flirc addon does not detect the device. Previously I was using it in an identical Openelec setup and it was working perfectly. I've tried two different remotes, both working with the receiver plugged into computers. I'm fairly techy but a complete novice to the raspberry pi and linux. Running XBMC 13.2 and Flirc 3.0 firmware. Has anyone had this problem or know of a way to remedy it? Thanks