I can't connect my nook to my computer. It connects and then disconnects then connects then disconnects and keeps doing that until I unplug it. I can't eject or safely remove, I just have to unplug it. What can I do? I can't put library books on it now, because it won't stay connected.
Search Device Manager (I presume Windows) for anything that is Nook and delete that "device". Reboot (I'm tempted to suggest a full power cycle, not just a restart). Try connecting the Nook.
If that is no solution, find another computer and connect -- if problem, it is Nook; otherwise it is you computer.