I also had troubles with my NC cable. The end with the n split open - looked like the glue or whatever sealer they used came loose. I held it together with a hair elastic for a while, then the green LED went out - only the red one would come on when charging. Went by a B&N store - they said bring it in and they would swap it out with one in a NC box that was being returned. Did that - new cable seems a little shorter - the end with the n seems smaller. might just be my imagination. It works fine.
