NUMBER:  259

  ERROR CODE:  F

  MESSAGE TEXT:  sequential-access I/O to unit open for direct access

  EXPLANATION:  The OPEN for this unit number specified direct access
  and the I/O statement specifies sequential access.  Check the OPEN
  statement and make sure the I/O statement uses the correct unit
  number and type of access.  (For more information on statements,
  see the HP Fortran for OpenVMS Language Reference Manual.)