I got the same (or very similar) message the first bunch of times I connected PC to NC, but I was still able to transfer content back and forth through "my computer", it just looked like a generic USB mass storage device.
It is my understanding that if your pc does not recognize the device, that is an indication that the driver failed to install properly. Something you can try to reinstall the driver:
with the NC connected via usb, click the start button, right click "computer", click "manage", on the left of the pop up window, click "device manager", and on the right, you should see a list of all your drivers. A recognized NC will show in that list as "Nook" or "Nook Color" I forget which. If your NC is not recognized by your PC, my guess is that is will be listed as "usb mass storage device" or "portable device" or something similar.
Double clicking on each driver will reveal a properties window. Select the details tab. In the drop down bar, select manufacturer. Recognized or not, the manufacturer will be listed as "B&N" for the NC driver. Once you find the right one, close the properties window, then right click the driver you identified, then choose "uninstall".
I would wait a few seconds to see if the driver automatically reinstalls, but if not, click "action" in the menu bar, then select "update driver software..." and choose the automatic option. If the driver is not found, I would disconnect the NC, restart PC and NC and reconnect.
Before doing this, I recommend confirming that "my computer" is not capable of recognizing the content on your NC, even as an unrecognized device.
Also, I would feel more comfortable is anybody else can confirm that this is sound advice for a stock NC. Anybody?
..This is not the first time i've connected..I've been reading library books almost exclusively and it has been working wonderfully
