samba - Sep 2012 - update to 3.6.7: roaming profiles no longer work

Hi everyone
I upgraded from a working 3.6.3 openSUSE installation to their new 12.2 
samba version 3.6.7.

It has broken the windows roaming profiles and mapped homeDrive's coming 
from a Samba4 AD.

I'll not bore you with the (very basic) config but just to ask if anyone 
else has experienced this.

Thanks,
Steve