Hi Modeller users, I am trying to model a 2 domain protein. I give a pdb file with 2 chains (toatal of 1828 atoms)along with the alignment. During the run I get an error - Atom index is out of range. nselat__596E> Atom index is out of range (iatm,natm): 1829 1828 Any idea what could be wrong Cheers, Satyan