CCL: DNA modelling (missing atoms in PDB files)

 Sent to CCL by: "Miro  Moman" [miromoman :]
 I am currently modelling protein/DNA complexes. In both protein and DNA
 structures there are missing atoms/residues. For proteins, I know a number of
 freely avaliable programs that "guess" the coordinates of the
 non-resolved atoms and try to reconstruct the structure accordingly (such as
 SPDBV). However, I could not find any free program able to "correct"
 the DNA structures in a similar way (the only one I know is LeAP, which comes
 with the AMBER package). I would very much appreciate any information on such a