I pressed the update circle (rotating arrows) at the top right on the Apps page of my NC. It's been spinning for 30 minutes. Running 1.2.0, have about 15 apps, all has been good until now. What's up?
I advise you to shut down the NC, remove your SD card from the NC, start back up and try again. This has worked for me in the past. Once you've done that, you can shut down and reinsert the card. I have had to do this on a couple of occasions.