1111: <filename(modulename)> : invalid segment definition 
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  This message indicates that the file shown, which may be an .OBJ file or
  a .LIB file, contains an invalid object record. If the file is expected
  to be valid, then it has probably become corrupt.  To rectify this
  either recreate the file by recompiling, or reinstall the appropriate
  file from the installation diskette.

  Another possible cause of this error is the use of a compiler that
  generates object records of a type that Blinker does not recognise. In
  this case, please contact technical support giving full details of the
  compiler being used and any compiler switches.