Samba problems with 7.0

Upgrading my system from 6.3 to 7.0 , SMB services starts no more. I have found that the size of the file /etc/rc.config was reduced from 22000 to 1600 bytes (approx) and the statement START_SMB="yes" was missing. Can anyone help me? TIA and HAPPY NEW YEAR Robert Brisig Lugano. Switzerland rbr@ticino.com