Okay picked up this Nook Color very reasonable second hand. It had the Nook Color 1.2 factory OS installed and came with a 8gb N2A card as well. I fired it up and updated to the 1.3 OS however when I try to register the unit it gives me an error that there is issues. Needless to say after contacting customer service I found out that the serial number is associated with a different email and B&N account. Long story short I have tried to contact the previous owner regarding this issue without any luck. I have read a ton of "unregister your Nook" kind of articles but almost all of them deal with 1.0.1 or 1.1 OS's. None of them work! Is there any way that any of you know how to unregister this unit without contacting the previous owner? B&N will not, of course, do this! They keep telling me to contact the previous owner and get the account information or have him or her unregister the unit. any help would be greatly appreciated!