When I got up this morning I noticed that the clock on my NB3 was slow by 63 minutes. When it is really 9:30 it is showing 8:27. I tried turning it off and on, and a hard reboot but the problem persisted. About 5 minutes after the reboot it did the DNLD function to update the guide and that appears to have corrected the problem.
So this is just an FYI for everybody to check the time displayed on their boxes.