generating pdb and psf files for DNA

[Balaji Bhyravbhatla]

Hi All,
I could not find the answer to this in the FAQ, so please excuse me for
posting this basic question.
I am trying to set up the psf and pdb files for my protein containing
DNA. The resulting pdb file (for the DNA part) has an added O2` atom
wiht 9999.000 cordinates to it. 
How can I get xplor not to do that?? 

Thanks.

balaji
-- 
Florida State University                           
Institute of Molecular Biophysics                   
Room 412 -- (904) 644 6547                       
balaji at sb.fsu.edu