At work, I have a Win7-x64 computer and ADB can see my NookColor, running CM7-87 from EMMC with Danglin's 5/23 Kernel.
However, it can't see my coworker's NookColor, which I also upgraded to CM7-87 on EMMC from rooted Stock1.1 by wiping data, cache, Delvik Cache and installing CM-87, GAPSS and...