This has happened to me on both the original OS and on 1.1.
At the end of the calibration, the process never completes, just gets in an endless loop L1-L2-L3-L4-L5-L6 and repeats over and over again. I have to power down the unit (I know the manual says not to do this) and when I turn it back on, it doesn't appear any harm was done.
Anyone else see this happening?
Thanks-
-dj