With the USB cable connected, touch the little circle in the status bar (at the top or bottom of the screen) with the arrow pointing out if it. That should give you a horizontal white bar somewhere on the screen with the words 'USB connected' above 'Select to copy files to/from your computer.' When you touch that bar you should get a screen with the android logo and, again, with the words 'USB connected' under it. Click on the button near the bottom of the screen that says, 'Turn on USB storage'. When you do that, the screen will change so that the words under the (now-orange) logo will read 'USB storage in use' and the mountable partitions on the SD card and in the Nook's internal memory should show up wherever mountable partitions of connected drives show up on your computer. (I'm a Mac user, so I don't know if MSWindows users will have to do anything on the computer itself at this point to allow them to interact with those partitions.)
