First published on TechNet on Dec 13, 2006
We've had several reports of SBS CAL activations failing.  We're currently looking in to the situation and will post an update here as soon as we have more information.  This only affects CALs at this point, server and all other product activations are working properly.

Update 12/14/2006 9:00 AM:

The back-end problems with CAL activation have been resolved.