I have a Blue Circle Audio USB Thingee; That is the actual name, interesting, I know. I have tried multiple USB ports and the device appears and disappears randomly. I am lucky if I can listen through and entire song without it disappearing. Sometimes when it looks connection and is trying to reconnect(for lack of better wording) it sends white noise to through the signal--not good for a 1000 dollars worth of stereo equipment. I can't figure out why this problem started. I didn't switch the length of the USB cord, but do you think that could be a problem? Could this be a sign my PSU is dieing on me? Thanks.