1020    Record not found

     Explanation:  This error indicates one of the following conditions:

     1. Invalid record number data type specified in DBGOTO().

     2. Invalid field data type encountered when loading a field from disk to
        memory.

     3. Invalid field data type encountered when storing a field from memory
        to disk.

     Action:  Delete indices and recreate.  Check for memory conflicts
     that could cause a corruption of the index buffer.  Try disabling the
     EMS with the //E:0 in SET CLIPPER.  If using third-party RDDs, try
     increasing the stack space.  If using structural indexes (.CDX, .MDX),
     delete the index file and recreate.

     Note:  This error is applicable to the DBFNTX replaceable database
     driver (RDD), and may not be applicable to other RDDs.