asterisk users - Jul 2006 - !! Got a UA, but i'm in state 1

Does anybody know what these are?  Started getting them last night when 
I upgraded from 1.2.6 (Zaptel 1.2.6) to 1.2.10 (Zaptel 1.2.7).  Then my 
E1 ISDN PRIs go down...

I've had to roll back to 1.2.6 :-(

Matt.