I've been trying to register my new mb for about a week without success. Everytime I try to register it I get a serial number error. Anyone have a suggestion where to find the serial number (short of removing the board to look at the bottom). I still hav e toe box it came in and have tried several different numbers from labels on the box. I even opened - up my case and copied down a long number from a sticker located in the middle of the top of the mb. Any suggestion or clues as to what to look for as far as format?😕