I'm trying to wipe clean my Nook Color. It was rooted under 1.2 but that root was broken by the 1.3 update. I tried to install CyanogenMod 7 and the files showed as having updated, but the NC would not boot up past the blue "Android" word. Now I'm trying to just wipe the device clean to reinstall a Stock 1.2 zip. Using the CWM bootable SD, I can reformat the system, but I get the message "error - cannot reformat data" when I try to reformat data. When I power up the NC, I get to the Nook Color splash screen from Nook Color Devs and it stays there. Any suggestions on how I can get this NC clean and ready to reinstall 1.2? Thanks in advance for your help.