Same problem too - restoring the system settings sends you into a FC loop. In the end I did a fresh install and set everything up manually. This is the first build in a long time that actually feels like a step backwards. I'll see if it settles down over the next few hours.I had exact same problem. And I tried .US and this sites rom. Have a Nexus S.
Boot up was ok but soon as I restored my backup. FC loop non stop. I ened up going back to last weeks ROM. It was fine.