Thanks for the reply. However, the error remains - MAXRES now needs to
be increased to 51 ! I have a feeling this could go on forever.
I did some work on this last night, and the following script worked:
SET OUTPUT_CONTROL = 1 1 1 1 1
READ_MODEL FILE = '1hms'
SEQUENCE_TO_ALI ATOM_FILES = '1hms', ALIGN_CODES = '1hms'
READ_MODEL FILE = '1lid'