I'VE HAD THE UNIT FOR QUITE SOME TIME.  I BOUGHT IT @ GUITAR CENTER IN KNOXVILLE, TN. ON MY PREVIOUS PC THE USB DROP WOULD ONLY OCCUR EVERY NOW AND THEN. WITH THIS PC IT DROPS AFTER A COUPLE SECONDS OF USE. I JUST NEED TO KNOW THE PROCESS OF WHAT I NEED TO DO TO HAVE THIS CORRECTED. THERE ARE REALLY NO SERVICE CENTERS CLOSE TO ME.  THANKS FOR THE HELP.