Hi, Running Modeller8v1 I am getting the following error message: IOError: openf5__225E> File does not exist: file-not-found pdbnam__217W> Filename for PDB code not found: adsl.B99990001.pdb Directories: ./ Extensions : :.atm:.pdb:.ent:.crd openf5__224_> Open 11 OLD SEQUENTIAL file-not-found openf5__225E> File does not exist: file-not-found Does anyone have a suggestion why it is happening !? Thanks in advance, -- Ricardo de Paula Nicoluci PhD Student Medicinal Chemistry Laboratory IFSC - University of Sao Paulo Sao Carlos - SP - Brazil